diff --git a/Penumbra/Api/PenumbraApi.cs b/Penumbra/Api/PenumbraApi.cs
index 6a373d14..7712c56c 100644
--- a/Penumbra/Api/PenumbraApi.cs
+++ b/Penumbra/Api/PenumbraApi.cs
@@ -8,6 +8,7 @@ using Lumina.Data;
 using Penumbra.Collections;
 using Penumbra.GameData.ByteString;
 using Penumbra.GameData.Enums;
+using Penumbra.Mod;
 using Penumbra.Mods;
 
 namespace Penumbra.Api;
@@ -77,7 +78,7 @@ public class PenumbraApi : IDisposable, IPenumbraApi
         _penumbra!.ObjectReloader.RedrawAll( setting );
     }
 
-    private static string ResolvePath( string path, ModManager _, ModCollection2 collection )
+    private static string ResolvePath( string path, Mod.Mod.Manager _, ModCollection collection )
     {
         if( !Penumbra.Config.EnableMods )
         {
@@ -134,7 +135,7 @@ public class PenumbraApi : IDisposable, IPenumbraApi
         {
             if( !Penumbra.CollectionManager.ByName( collectionName, out var collection ) )
             {
-                collection = ModCollection2.Empty;
+                collection = ModCollection.Empty;
             }
 
             if( collection.HasCache )
diff --git a/Penumbra/Collections/CollectionManager.Active.cs b/Penumbra/Collections/CollectionManager.Active.cs
index 3250e10d..17f11eae 100644
--- a/Penumbra/Collections/CollectionManager.Active.cs
+++ b/Penumbra/Collections/CollectionManager.Active.cs
@@ -1,261 +1,261 @@
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Linq;
 using Dalamud.Logging;
-using Penumbra.Meta.Manager;
 using Penumbra.Mod;
-using Penumbra.Mods;
 using Penumbra.Util;
 
 namespace Penumbra.Collections;
 
-public sealed partial class CollectionManager2
+public partial class ModCollection
 {
-    // Is invoked after the collections actually changed.
-    public event CollectionChangeDelegate? CollectionChanged;
-
-    private int _currentIdx     = -1;
-    private int _defaultIdx     = -1;
-    private int _defaultNameIdx = 0;
-
-    public ModCollection2 Current
-        => this[ _currentIdx ];
-
-    public ModCollection2 Default
-        => this[ _defaultIdx ];
-
-    private readonly Dictionary< string, int > _character = new();
-
-    public ModCollection2 Character( string name )
-        => _character.TryGetValue( name, out var idx ) ? _collections[ idx ] : Default;
-
-    public bool HasCharacterCollections
-        => _character.Count > 0;
-
-    private void OnModChanged( ModChangeType type, int idx, ModData mod )
+    public sealed partial class Manager
     {
-        switch( type )
+        // Is invoked after the collections actually changed.
+        public event CollectionChangeDelegate? CollectionChanged;
+
+        private int _currentIdx     = 1;
+        private int _defaultIdx     = 0;
+        private int _defaultNameIdx = 0;
+
+        public ModCollection Current
+            => this[ _currentIdx ];
+
+        public ModCollection Default
+            => this[ _defaultIdx ];
+
+        private readonly Dictionary< string, int > _character = new();
+
+        public ModCollection Character( string name )
+            => _character.TryGetValue( name, out var idx ) ? this[ idx ] : Default;
+
+        public IEnumerable< (string, ModCollection) > Characters
+            => _character.Select( kvp => ( kvp.Key, this[ kvp.Value ] ) );
+
+        public bool HasCharacterCollections
+            => _character.Count > 0;
+
+        private void OnModChanged( Mod.Mod.ChangeType type, int idx, Mod.Mod mod )
         {
-            case ModChangeType.Added:
-                foreach( var collection in _collections )
-                {
-                    collection.AddMod( mod );
-                }
-
-                foreach( var collection in _collections.Where( c => c.HasCache && c[ ^1 ].Settings?.Enabled == true ) )
-                {
-                    collection.UpdateCache();
-                }
-
-                break;
-            case ModChangeType.Removed:
-                var list = new List< ModSettings? >( _collections.Count );
-                foreach( var collection in _collections )
-                {
-                    list.Add( collection[ idx ].Settings );
-                    collection.RemoveMod( mod, idx );
-                }
-
-                foreach( var (collection, _) in _collections.Zip( list ).Where( c => c.First.HasCache && c.Second?.Enabled == true ) )
-                {
-                    collection.UpdateCache();
-                }
-
-                break;
-            case ModChangeType.Changed:
-                foreach( var collection in _collections.Where(
-                            collection => collection.Settings[ idx ]?.FixInvalidSettings( mod.Meta ) ?? false ) )
-                {
-                    collection.Save();
-                }
-
-                foreach( var collection in _collections.Where( c => c.HasCache && c[ idx ].Settings?.Enabled == true ) )
-                {
-                    collection.UpdateCache();
-                }
-
-                break;
-            default: throw new ArgumentOutOfRangeException( nameof( type ), type, null );
-        }
-    }
-
-    private void CreateNecessaryCaches()
-    {
-        if( _defaultIdx >= 0 )
-        {
-            Default.CreateCache();
-        }
-
-        if( _currentIdx >= 0 )
-        {
-            Current.CreateCache();
-        }
-
-        foreach( var idx in _character.Values.Where( i => i >= 0 ) )
-        {
-            _collections[ idx ].CreateCache();
-        }
-    }
-
-    public void UpdateCaches()
-    {
-        foreach( var collection in _collections )
-        {
-            collection.UpdateCache();
-        }
-    }
-
-    private void RemoveCache( int idx )
-    {
-        if( idx != _defaultIdx && idx != _currentIdx && _character.All( kvp => kvp.Value != idx ) )
-        {
-            _collections[ idx ].ClearCache();
-        }
-    }
-
-    public void SetCollection( string name, CollectionType type, string? characterName = null )
-        => SetCollection( GetIndexForCollectionName( name ), type, characterName );
-
-    public void SetCollection( ModCollection2 collection, CollectionType type, string? characterName = null )
-        => SetCollection( GetIndexForCollectionName( collection.Name ), type, characterName );
-
-    public void SetCollection( int newIdx, CollectionType type, string? characterName = null )
-    {
-        var oldCollectionIdx = type switch
-        {
-            CollectionType.Default => _defaultIdx,
-            CollectionType.Current => _currentIdx,
-            CollectionType.Character => characterName?.Length > 0
-                ? _character.TryGetValue( characterName, out var c )
-                    ? c
-                    : _defaultIdx
-                : -2,
-            _ => -2,
-        };
-
-        if( oldCollectionIdx == -2 || newIdx == oldCollectionIdx )
-        {
-            return;
-        }
-
-        var newCollection = this[ newIdx ];
-        if( newIdx >= 0 )
-        {
-            newCollection.CreateCache();
-        }
-
-        RemoveCache( oldCollectionIdx );
-        switch( type )
-        {
-            case CollectionType.Default:
-                _defaultIdx                       = newIdx;
-                Penumbra.Config.DefaultCollection = newCollection.Name;
-                Penumbra.ResidentResources.Reload();
-                Default.SetFiles();
-                break;
-            case CollectionType.Current:
-                _currentIdx                       = newIdx;
-                Penumbra.Config.CurrentCollection = newCollection.Name;
-                break;
-            case CollectionType.Character:
-                _character[ characterName! ]                           = newIdx;
-                Penumbra.Config.CharacterCollections[ characterName! ] = newCollection.Name;
-                break;
-        }
-
-        CollectionChanged?.Invoke( this[ oldCollectionIdx ], newCollection, type, characterName );
-        Penumbra.Config.Save();
-    }
-
-    public bool CreateCharacterCollection( string characterName )
-    {
-        if( _character.ContainsKey( characterName ) )
-        {
-            return false;
-        }
-
-        _character[ characterName ]                           = -1;
-        Penumbra.Config.CharacterCollections[ characterName ] = ModCollection2.Empty.Name;
-        Penumbra.Config.Save();
-        CollectionChanged?.Invoke( null, ModCollection2.Empty, CollectionType.Character, characterName );
-        return true;
-    }
-
-    public void RemoveCharacterCollection( string characterName )
-    {
-        if( _character.TryGetValue( characterName, out var collection ) )
-        {
-            RemoveCache( collection );
-            _character.Remove( characterName );
-            CollectionChanged?.Invoke( this[ collection ], null, CollectionType.Character, characterName );
-        }
-
-        if( Penumbra.Config.CharacterCollections.Remove( characterName ) )
-        {
-            Penumbra.Config.Save();
-        }
-    }
-
-    private int GetIndexForCollectionName( string name )
-    {
-        if( name.Length == 0 || name == ModCollection2.DefaultCollection )
-        {
-            return -1;
-        }
-
-        var idx = _collections.IndexOf( c => c.Name == Penumbra.Config.DefaultCollection );
-        return idx < 0 ? -2 : idx;
-    }
-
-    public void LoadCollections()
-    {
-        var configChanged = false;
-        _defaultIdx = GetIndexForCollectionName( Penumbra.Config.DefaultCollection );
-        if( _defaultIdx == -2 )
-        {
-            PluginLog.Error( $"Last choice of Default Collection {Penumbra.Config.DefaultCollection} is not available, reset to None." );
-            _defaultIdx                       = -1;
-            Penumbra.Config.DefaultCollection = this[ _defaultIdx ].Name;
-            configChanged                     = true;
-        }
-
-        _currentIdx = GetIndexForCollectionName( Penumbra.Config.CurrentCollection );
-        if( _currentIdx == -2 )
-        {
-            PluginLog.Error( $"Last choice of Current Collection {Penumbra.Config.CurrentCollection} is not available, reset to Default." );
-            _currentIdx                       = _defaultNameIdx;
-            Penumbra.Config.DefaultCollection = this[ _currentIdx ].Name;
-            configChanged                     = true;
-        }
-
-        if( LoadCharacterCollections() || configChanged )
-        {
-            Penumbra.Config.Save();
-        }
-
-        CreateNecessaryCaches();
-    }
-
-    private bool LoadCharacterCollections()
-    {
-        var configChanged = false;
-        foreach( var (player, collectionName) in Penumbra.Config.CharacterCollections.ToArray() )
-        {
-            var idx = GetIndexForCollectionName( collectionName );
-            if( idx == -2 )
+            var meta = mod.Resources.MetaManipulations.Count > 0;
+            switch( type )
             {
-                PluginLog.Error( $"Last choice of <{player}>'s Collection {collectionName} is not available, reset to None." );
-                _character.Add( player, -1 );
-                Penumbra.Config.CharacterCollections[ player ] = ModCollection2.Empty.Name;
-                configChanged                                  = true;
-            }
-            else
-            {
-                _character.Add( player, idx );
+                case Mod.Mod.ChangeType.Added:
+                    foreach( var collection in this )
+                    {
+                        collection.AddMod( mod );
+                    }
+
+                    foreach( var collection in this.Where( c => c.HasCache && c[ ^1 ].Settings?.Enabled == true ) )
+                    {
+                        collection.CalculateEffectiveFileList( meta, collection == Penumbra.CollectionManager.Default );
+                    }
+
+                    break;
+                case Mod.Mod.ChangeType.Removed:
+                    var list = new List< ModSettings? >( _collections.Count );
+                    foreach( var collection in this )
+                    {
+                        list.Add( collection[ idx ].Settings );
+                        collection.RemoveMod( mod, idx );
+                    }
+
+                    foreach( var (collection, _) in this.Zip( list ).Where( c => c.First.HasCache && c.Second?.Enabled == true ) )
+                    {
+                        collection.CalculateEffectiveFileList( meta, collection == Penumbra.CollectionManager.Default );
+                    }
+
+                    break;
+                case Mod.Mod.ChangeType.Changed:
+                    foreach( var collection in this.Where(
+                                collection => collection.Settings[ idx ]?.FixInvalidSettings( mod.Meta ) ?? false ) )
+                    {
+                        collection.Save();
+                    }
+
+                    foreach( var collection in this.Where( c => c.HasCache && c[ idx ].Settings?.Enabled == true ) )
+                    {
+                        collection.CalculateEffectiveFileList( meta, collection == Penumbra.CollectionManager.Default );
+                    }
+
+                    break;
+                default: throw new ArgumentOutOfRangeException( nameof( type ), type, null );
             }
         }
 
-        return configChanged;
+        private void CreateNecessaryCaches()
+        {
+            if( _defaultIdx > Empty.Index )
+            {
+                Default.CreateCache(true);
+            }
+
+            if( _currentIdx > Empty.Index )
+            {
+                Current.CreateCache(false);
+            }
+
+            foreach( var idx in _character.Values.Where( i => i > Empty.Index ) )
+            {
+                _collections[ idx ].CreateCache(false);
+            }
+        }
+
+        public void ForceCacheUpdates()
+        {
+            foreach( var collection in this )
+            {
+                collection.ForceCacheUpdate(collection == Default);
+            }
+        }
+
+        private void RemoveCache( int idx )
+        {
+            if( idx != _defaultIdx && idx != _currentIdx && _character.All( kvp => kvp.Value != idx ) )
+            {
+                _collections[ idx ].ClearCache();
+            }
+        }
+
+        public void SetCollection( ModCollection collection, Type type, string? characterName = null )
+            => SetCollection( collection.Index, type, characterName );
+
+        public void SetCollection( int newIdx, Type type, string? characterName = null )
+        {
+            var oldCollectionIdx = type switch
+            {
+                Type.Default => _defaultIdx,
+                Type.Current => _currentIdx,
+                Type.Character => characterName?.Length > 0
+                    ? _character.TryGetValue( characterName, out var c )
+                        ? c
+                        : _defaultIdx
+                    : -1,
+                _ => -1,
+            };
+
+            if( oldCollectionIdx == -1 || newIdx == oldCollectionIdx )
+            {
+                return;
+            }
+
+            var newCollection = this[ newIdx ];
+            if( newIdx > Empty.Index )
+            {
+                newCollection.CreateCache(false);
+            }
+
+            RemoveCache( oldCollectionIdx );
+            switch( type )
+            {
+                case Type.Default:
+                    _defaultIdx                       = newIdx;
+                    Penumbra.Config.DefaultCollection = newCollection.Name;
+                    Penumbra.ResidentResources.Reload();
+                    Default.SetFiles();
+                    break;
+                case Type.Current:
+                    _currentIdx                       = newIdx;
+                    Penumbra.Config.CurrentCollection = newCollection.Name;
+                    break;
+                case Type.Character:
+                    _character[ characterName! ]                           = newIdx;
+                    Penumbra.Config.CharacterCollections[ characterName! ] = newCollection.Name;
+                    break;
+            }
+
+            CollectionChanged?.Invoke( this[ oldCollectionIdx ], newCollection, type, characterName );
+            Penumbra.Config.Save();
+        }
+
+        public bool CreateCharacterCollection( string characterName )
+        {
+            if( _character.ContainsKey( characterName ) )
+            {
+                return false;
+            }
+
+            _character[ characterName ]                           = Empty.Index;
+            Penumbra.Config.CharacterCollections[ characterName ] = Empty.Name;
+            Penumbra.Config.Save();
+            CollectionChanged?.Invoke( null, Empty, Type.Character, characterName );
+            return true;
+        }
+
+        public void RemoveCharacterCollection( string characterName )
+        {
+            if( _character.TryGetValue( characterName, out var collection ) )
+            {
+                RemoveCache( collection );
+                _character.Remove( characterName );
+                CollectionChanged?.Invoke( this[ collection ], null, Type.Character, characterName );
+            }
+
+            if( Penumbra.Config.CharacterCollections.Remove( characterName ) )
+            {
+                Penumbra.Config.Save();
+            }
+        }
+
+        private int GetIndexForCollectionName( string name )
+        {
+            if( name.Length == 0 )
+            {
+                return Empty.Index;
+            }
+
+            return _collections.IndexOf( c => c.Name == name );
+        }
+
+        public void LoadCollections()
+        {
+            var configChanged = false;
+            _defaultIdx = GetIndexForCollectionName( Penumbra.Config.DefaultCollection );
+            if( _defaultIdx < 0 )
+            {
+                PluginLog.Error( $"Last choice of Default Collection {Penumbra.Config.DefaultCollection} is not available, reset to None." );
+                _defaultIdx                       = Empty.Index;
+                Penumbra.Config.DefaultCollection = this[ _defaultIdx ].Name;
+                configChanged                     = true;
+            }
+
+            _currentIdx = GetIndexForCollectionName( Penumbra.Config.CurrentCollection );
+            if( _currentIdx < 0 )
+            {
+                PluginLog.Error( $"Last choice of Current Collection {Penumbra.Config.CurrentCollection} is not available, reset to Default." );
+                _currentIdx                       = _defaultNameIdx;
+                Penumbra.Config.DefaultCollection = this[ _currentIdx ].Name;
+                configChanged                     = true;
+            }
+
+            if( LoadCharacterCollections() || configChanged )
+            {
+                Penumbra.Config.Save();
+            }
+
+            CreateNecessaryCaches();
+        }
+
+        private bool LoadCharacterCollections()
+        {
+            var configChanged = false;
+            foreach( var (player, collectionName) in Penumbra.Config.CharacterCollections.ToArray() )
+            {
+                var idx = GetIndexForCollectionName( collectionName );
+                if( idx < 0 )
+                {
+                    PluginLog.Error( $"Last choice of <{player}>'s Collection {collectionName} is not available, reset to None." );
+                    _character.Add( player, Empty.Index );
+                    Penumbra.Config.CharacterCollections[ player ] = Empty.Name;
+                    configChanged                                  = true;
+                }
+                else
+                {
+                    _character.Add( player, idx );
+                }
+            }
+
+            return configChanged;
+        }
     }
 }
\ No newline at end of file
diff --git a/Penumbra/Collections/CollectionManager.cs b/Penumbra/Collections/CollectionManager.cs
index 7fd81136..440f88ac 100644
--- a/Penumbra/Collections/CollectionManager.cs
+++ b/Penumbra/Collections/CollectionManager.cs
@@ -2,222 +2,239 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
-using System.Diagnostics.Contracts;
 using System.IO;
 using System.Linq;
 using Dalamud.Logging;
-using Penumbra.Mods;
 using Penumbra.Util;
 
 namespace Penumbra.Collections;
 
-public enum CollectionType : byte
+public partial class ModCollection
 {
-    Inactive,
-    Default,
-    Character,
-    Current,
-}
-
-public sealed partial class CollectionManager2 : IDisposable, IEnumerable< ModCollection2 >
-{
-    public delegate void CollectionChangeDelegate( ModCollection2? oldCollection, ModCollection2? newCollection, CollectionType type,
-        string? characterName = null );
-
-    private readonly ModManager _modManager;
-
-    private readonly List< ModCollection2 > _collections = new();
-
-    public ModCollection2 this[ Index idx ]
-        => idx.Value == -1 ? ModCollection2.Empty : _collections[ idx ];
-
-    public ModCollection2? this[ string name ]
-        => ByName( name, out var c ) ? c : null;
-
-    public bool ByName( string name, [NotNullWhen( true )] out ModCollection2? collection )
-        => _collections.FindFirst( c => string.Equals( c.Name, name, StringComparison.InvariantCultureIgnoreCase ), out collection );
-
-    public IEnumerator< ModCollection2 > GetEnumerator()
-        => _collections.GetEnumerator();
-
-    IEnumerator IEnumerable.GetEnumerator()
-        => GetEnumerator();
-
-    public CollectionManager2( ModManager manager )
+    public enum Type : byte
     {
-        _modManager = manager;
-
-        _modManager.ModsRediscovered += OnModsRediscovered;
-        _modManager.ModChange        += OnModChanged;
-        ReadCollections();
-        LoadCollections();
+        Inactive,
+        Default,
+        Character,
+        Current,
     }
 
-    public void Dispose()
+    public sealed partial class Manager : IDisposable, IEnumerable< ModCollection >
     {
-        _modManager.ModsRediscovered -= OnModsRediscovered;
-        _modManager.ModChange        -= OnModChanged;
-    }
+        public delegate void CollectionChangeDelegate( ModCollection? oldCollection, ModCollection? newCollection, Type type,
+            string? characterName = null );
 
-    private void OnModsRediscovered()
-    {
-        UpdateCaches();
-        Default.SetFiles();
-    }
+        private readonly Mod.Mod.Manager _modManager;
 
-    private void AddDefaultCollection()
-    {
-        var idx = _collections.IndexOf( c => c.Name == ModCollection2.DefaultCollection );
-        if( idx >= 0 )
+        private readonly List< ModCollection > _collections = new()
         {
-            _defaultNameIdx = idx;
-            return;
+            Empty,
+        };
+
+        public ModCollection this[ Index idx ]
+            => _collections[ idx ];
+
+        public ModCollection this[ int idx ]
+            => _collections[ idx ];
+
+        public ModCollection? this[ string name ]
+            => ByName( name, out var c ) ? c : null;
+
+        public bool ByName( string name, [NotNullWhen( true )] out ModCollection? collection )
+            => _collections.FindFirst( c => string.Equals( c.Name, name, StringComparison.InvariantCultureIgnoreCase ), out collection );
+
+        public IEnumerator< ModCollection > GetEnumerator()
+            => _collections.Skip( 1 ).GetEnumerator();
+
+        IEnumerator IEnumerable.GetEnumerator()
+            => GetEnumerator();
+
+        public Manager( Mod.Mod.Manager manager )
+        {
+            _modManager = manager;
+
+            _modManager.ModsRediscovered += OnModsRediscovered;
+            _modManager.ModChange        += OnModChanged;
+            ReadCollections();
+            LoadCollections();
         }
 
-        var defaultCollection = ModCollection2.CreateNewEmpty( ModCollection2.DefaultCollection );
-        defaultCollection.Save();
-        _defaultNameIdx = _collections.Count;
-        _collections.Add( defaultCollection );
-    }
-
-    private void ApplyInheritancesAndFixSettings( IEnumerable< IReadOnlyList< string > > inheritances )
-    {
-        foreach( var (collection, inheritance) in this.Zip( inheritances ) )
+        public void Dispose()
         {
-            var changes = false;
-            foreach( var subCollectionName in inheritance )
-            {
-                if( !ByName( subCollectionName, out var subCollection ) )
-                {
-                    changes = true;
-                    PluginLog.Warning( $"Inherited collection {subCollectionName} for {collection.Name} does not exist, removed." );
-                }
-                else if( !collection.AddInheritance( subCollection ) )
-                {
-                    changes = true;
-                    PluginLog.Warning( $"{collection.Name} can not inherit from {subCollectionName}, removed." );
-                }
-            }
-
-            foreach( var (setting, mod) in collection.Settings.Zip( _modManager.Mods ).Where( s => s.First != null ) )
-            {
-                changes |= setting!.FixInvalidSettings( mod.Meta );
-            }
-
-            if( changes )
-            {
-                collection.Save();
-            }
+            _modManager.ModsRediscovered -= OnModsRediscovered;
+            _modManager.ModChange        -= OnModChanged;
         }
-    }
 
-    private void ReadCollections()
-    {
-        var collectionDir = new DirectoryInfo( ModCollection2.CollectionDirectory );
-        var inheritances  = new List< IReadOnlyList< string > >();
-        if( collectionDir.Exists )
+        private void OnModsRediscovered()
         {
-            foreach( var file in collectionDir.EnumerateFiles( "*.json" ) )
+            ForceCacheUpdates();
+            Default.SetFiles();
+        }
+
+        private void AddDefaultCollection()
+        {
+            var idx = _collections.IndexOf( c => c.Name == DefaultCollection );
+            if( idx >= 0 )
             {
-                var collection = ModCollection2.LoadFromFile( file, out var inheritance );
-                if( collection == null || collection.Name.Length == 0 )
+                _defaultNameIdx = idx;
+                return;
+            }
+
+            var defaultCollection = CreateNewEmpty( DefaultCollection );
+            defaultCollection.Save();
+            _defaultNameIdx = _collections.Count;
+            _collections.Add( defaultCollection );
+        }
+
+        private void ApplyInheritancesAndFixSettings( IEnumerable< IReadOnlyList< string > > inheritances )
+        {
+            foreach( var (collection, inheritance) in this.Zip( inheritances ) )
+            {
+                var changes = false;
+                foreach( var subCollectionName in inheritance )
                 {
-                    continue;
+                    if( !ByName( subCollectionName, out var subCollection ) )
+                    {
+                        changes = true;
+                        PluginLog.Warning( $"Inherited collection {subCollectionName} for {collection.Name} does not exist, removed." );
+                    }
+                    else if( !collection.AddInheritance( subCollection ) )
+                    {
+                        changes = true;
+                        PluginLog.Warning( $"{collection.Name} can not inherit from {subCollectionName}, removed." );
+                    }
                 }
 
-                if( file.Name != $"{collection.Name.RemoveInvalidPathSymbols()}.json" )
+                foreach( var (setting, mod) in collection.Settings.Zip( _modManager.Mods ).Where( s => s.First != null ) )
                 {
-                    PluginLog.Warning( $"Collection {file.Name} does not correspond to {collection.Name}." );
+                    changes |= setting!.FixInvalidSettings( mod.Meta );
                 }
 
-                if( this[ collection.Name ] != null )
+                if( changes )
                 {
-                    PluginLog.Warning( $"Duplicate collection found: {collection.Name} already exists." );
-                }
-                else
-                {
-                    inheritances.Add( inheritance );
-                    _collections.Add( collection );
+                    collection.Save();
                 }
             }
         }
 
-        AddDefaultCollection();
-        ApplyInheritancesAndFixSettings( inheritances );
-    }
-
-    public bool AddCollection( string name, ModCollection2? duplicate )
-    {
-        var nameFixed = name.RemoveInvalidPathSymbols().ToLowerInvariant();
-        if( nameFixed.Length == 0
-        || nameFixed         == ModCollection2.Empty.Name.ToLowerInvariant()
-        || _collections.Any( c => c.Name.RemoveInvalidPathSymbols().ToLowerInvariant() == nameFixed ) )
+        private void ReadCollections()
         {
-            PluginLog.Warning( $"The new collection {name} would lead to the same path as one that already exists." );
-            return false;
-        }
-
-        var newCollection = duplicate?.Duplicate( name ) ?? ModCollection2.CreateNewEmpty( name );
-        _collections.Add( newCollection );
-        newCollection.Save();
-        CollectionChanged?.Invoke( null, newCollection, CollectionType.Inactive );
-        SetCollection( _collections.Count - 1, CollectionType.Current );
-        return true;
-    }
-
-    public bool RemoveCollection( int idx )
-    {
-        if( idx < 0 || idx >= _collections.Count )
-        {
-            PluginLog.Error( "Can not remove the empty collection." );
-            return false;
-        }
-
-        if( idx == _defaultNameIdx )
-        {
-            PluginLog.Error( "Can not remove the default collection." );
-            return false;
-        }
-
-        if( idx == _currentIdx )
-        {
-            SetCollection( _defaultNameIdx, CollectionType.Current );
-        }
-        else if( _currentIdx > idx )
-        {
-            --_currentIdx;
-        }
-
-        if( idx == _defaultIdx )
-        {
-            SetCollection( -1, CollectionType.Default );
-        }
-        else if( _defaultIdx > idx )
-        {
-            --_defaultIdx;
-        }
-
-        if( _defaultNameIdx > idx )
-        {
-            --_defaultNameIdx;
-        }
-
-        foreach( var (characterName, characterIdx) in _character.ToList() )
-        {
-            if( idx == characterIdx )
+            var collectionDir = new DirectoryInfo( CollectionDirectory );
+            var inheritances  = new List< IReadOnlyList< string > >();
+            if( collectionDir.Exists )
             {
-                SetCollection( -1, CollectionType.Character, characterName );
-            }
-            else if( characterIdx > idx )
-            {
-                _character[ characterName ] = characterIdx - 1;
+                foreach( var file in collectionDir.EnumerateFiles( "*.json" ) )
+                {
+                    var collection = LoadFromFile( file, out var inheritance );
+                    if( collection == null || collection.Name.Length == 0 )
+                    {
+                        continue;
+                    }
+
+                    if( file.Name != $"{collection.Name.RemoveInvalidPathSymbols()}.json" )
+                    {
+                        PluginLog.Warning( $"Collection {file.Name} does not correspond to {collection.Name}." );
+                    }
+
+                    if( this[ collection.Name ] != null )
+                    {
+                        PluginLog.Warning( $"Duplicate collection found: {collection.Name} already exists." );
+                    }
+                    else
+                    {
+                        inheritances.Add( inheritance );
+                        collection.Index = _collections.Count;
+                        _collections.Add( collection );
+                    }
+                }
             }
+
+            AddDefaultCollection();
+            ApplyInheritancesAndFixSettings( inheritances );
         }
 
-        var collection = _collections[ idx ];
-        collection.Delete();
-        _collections.RemoveAt( idx );
-        CollectionChanged?.Invoke( collection, null, CollectionType.Inactive );
-        return true;
+        public bool AddCollection( string name, ModCollection? duplicate )
+        {
+            var nameFixed = name.RemoveInvalidPathSymbols().ToLowerInvariant();
+            if( nameFixed.Length == 0
+            || nameFixed         == Empty.Name.ToLowerInvariant()
+            || _collections.Any( c => c.Name.RemoveInvalidPathSymbols().ToLowerInvariant() == nameFixed ) )
+            {
+                PluginLog.Warning( $"The new collection {name} would lead to the same path as one that already exists." );
+                return false;
+            }
+
+            var newCollection = duplicate?.Duplicate( name ) ?? CreateNewEmpty( name );
+            newCollection.Index = _collections.Count;
+            _collections.Add( newCollection );
+            newCollection.Save();
+            CollectionChanged?.Invoke( null, newCollection, Type.Inactive );
+            SetCollection( newCollection.Index, Type.Current );
+            return true;
+        }
+
+        public bool RemoveCollection( ModCollection collection )
+            => RemoveCollection( collection.Index );
+
+        public bool RemoveCollection( int idx )
+        {
+            if( idx <= Empty.Index || idx >= _collections.Count )
+            {
+                PluginLog.Error( "Can not remove the empty collection." );
+                return false;
+            }
+
+            if( idx == _defaultNameIdx )
+            {
+                PluginLog.Error( "Can not remove the default collection." );
+                return false;
+            }
+
+            if( idx == _currentIdx )
+            {
+                SetCollection( _defaultNameIdx, Type.Current );
+            }
+            else if( _currentIdx > idx )
+            {
+                --_currentIdx;
+            }
+
+            if( idx == _defaultIdx )
+            {
+                SetCollection( -1, Type.Default );
+            }
+            else if( _defaultIdx > idx )
+            {
+                --_defaultIdx;
+            }
+
+            if( _defaultNameIdx > idx )
+            {
+                --_defaultNameIdx;
+            }
+
+            foreach( var (characterName, characterIdx) in _character.ToList() )
+            {
+                if( idx == characterIdx )
+                {
+                    SetCollection( -1, Type.Character, characterName );
+                }
+                else if( characterIdx > idx )
+                {
+                    _character[ characterName ] = characterIdx - 1;
+                }
+            }
+
+            var collection = _collections[ idx ];
+            collection.Delete();
+            _collections.RemoveAt( idx );
+            for( var i = idx; i < _collections.Count; ++i )
+            {
+                --_collections[ i ].Index;
+            }
+
+            CollectionChanged?.Invoke( collection, null, Type.Inactive );
+            return true;
+        }
     }
 }
\ No newline at end of file
diff --git a/Penumbra/Mod/ModCache.cs b/Penumbra/Collections/ConflictCache.cs
similarity index 65%
rename from Penumbra/Mod/ModCache.cs
rename to Penumbra/Collections/ConflictCache.cs
index 80e7451c..85db330d 100644
--- a/Penumbra/Mod/ModCache.cs
+++ b/Penumbra/Collections/ConflictCache.cs
@@ -4,7 +4,7 @@ using System.Linq;
 using Penumbra.GameData.ByteString;
 using Penumbra.Meta.Manipulations;
 
-namespace Penumbra.Mod;
+namespace Penumbra.Collections;
 
 public struct ConflictCache
 {
@@ -60,6 +60,12 @@ public struct ConflictCache
     public IReadOnlyList< ModCacheStruct > Conflicts
         => _conflicts ?? ( IReadOnlyList< ModCacheStruct > )Array.Empty< ModCacheStruct >();
 
+    public IEnumerable< ModCacheStruct > ModConflicts( int modIdx )
+    {
+        return _conflicts?.SkipWhile( c => c.Mod1 < modIdx ).TakeWhile( c => c.Mod1 == modIdx )
+         ?? Array.Empty< ModCacheStruct >();
+    }
+
     public void Sort()
         => _conflicts?.Sort();
 
@@ -89,55 +95,4 @@ public struct ConflictCache
 
     public void ClearConflictsWithMod( int modIdx )
         => _conflicts?.RemoveAll( m => m.Mod1 == modIdx || m.Mod2 == ~modIdx );
-}
-
-// The ModCache contains volatile information dependent on all current settings in a collection.
-public class ModCache
-{
-    public Dictionary< Mod, (List< Utf8GamePath > Files, List< MetaManipulation > Manipulations) > Conflicts { get; private set; } = new();
-
-    public void AddConflict( Mod precedingMod, Utf8GamePath gamePath )
-    {
-        if( Conflicts.TryGetValue( precedingMod, out var conflicts ) && !conflicts.Files.Contains( gamePath ) )
-        {
-            conflicts.Files.Add( gamePath );
-        }
-        else
-        {
-            Conflicts[ precedingMod ] = ( new List< Utf8GamePath > { gamePath }, new List< MetaManipulation >() );
-        }
-    }
-
-    public void AddConflict( Mod precedingMod, MetaManipulation manipulation )
-    {
-        if( Conflicts.TryGetValue( precedingMod, out var conflicts ) && !conflicts.Manipulations.Contains( manipulation ) )
-        {
-            conflicts.Manipulations.Add( manipulation );
-        }
-        else
-        {
-            Conflicts[ precedingMod ] = ( new List< Utf8GamePath >(), new List< MetaManipulation > { manipulation } );
-        }
-    }
-
-    public void ClearConflicts()
-        => Conflicts.Clear();
-
-    public void ClearFileConflicts()
-    {
-        Conflicts = Conflicts.Where( kvp => kvp.Value.Manipulations.Count > 0 ).ToDictionary( kvp => kvp.Key, kvp =>
-        {
-            kvp.Value.Files.Clear();
-            return kvp.Value;
-        } );
-    }
-
-    public void ClearMetaConflicts()
-    {
-        Conflicts = Conflicts.Where( kvp => kvp.Value.Files.Count > 0 ).ToDictionary( kvp => kvp.Key, kvp =>
-        {
-            kvp.Value.Manipulations.Clear();
-            return kvp.Value;
-        } );
-    }
 }
\ No newline at end of file
diff --git a/Penumbra/Collections/ModCollection.Cache.cs b/Penumbra/Collections/ModCollection.Cache.cs
index 697dde2f..01a53f87 100644
--- a/Penumbra/Collections/ModCollection.Cache.cs
+++ b/Penumbra/Collections/ModCollection.Cache.cs
@@ -1,10 +1,8 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
-using System.Collections.ObjectModel;
 using System.ComponentModel;
 using System.Diagnostics;
-using System.IO;
 using System.Linq;
 using Dalamud.Logging;
 using Penumbra.GameData.ByteString;
@@ -14,27 +12,34 @@ using Penumbra.Util;
 
 namespace Penumbra.Collections;
 
-public partial class ModCollection2
+public partial class ModCollection
 {
     private Cache? _cache;
 
     public bool HasCache
         => _cache != null;
 
-    public void CreateCache()
+    public void CreateCache( bool isDefault )
     {
+        if( Index == 0 )
+        {
+            return;
+        }
+
         if( _cache == null )
         {
-            _cache = new Cache( this );
-            _cache.CalculateEffectiveFileList();
+            CalculateEffectiveFileList( true, isDefault );
         }
     }
 
-    public void UpdateCache()
-        => _cache?.CalculateEffectiveFileList();
+    public void ForceCacheUpdate( bool isDefault )
+        => CalculateEffectiveFileList( true, isDefault );
 
     public void ClearCache()
-        => _cache = null;
+    {
+        _cache?.Dispose();
+        _cache = null;
+    }
 
     public FullPath? ResolvePath( Utf8GamePath path )
         => _cache?.ResolvePath( path );
@@ -60,8 +65,16 @@ public partial class ModCollection2
     internal IReadOnlyList< ConflictCache.ModCacheStruct > Conflicts
         => _cache?.Conflicts.Conflicts ?? Array.Empty< ConflictCache.ModCacheStruct >();
 
+    internal IEnumerable< ConflictCache.ModCacheStruct > ModConflicts( int modIdx )
+        => _cache?.Conflicts.ModConflicts( modIdx ) ?? Array.Empty< ConflictCache.ModCacheStruct >();
+
     public void CalculateEffectiveFileList( bool withMetaManipulations, bool reloadResident )
     {
+        if( Index == 0 )
+        {
+            return;
+        }
+
         PluginLog.Debug( "Recalculating effective file list for {CollectionName} [{WithMetaManipulations}]", Name, withMetaManipulations );
         _cache ??= new Cache( this );
         _cache.CalculateEffectiveFileList();
@@ -74,19 +87,21 @@ public partial class ModCollection2
         {
             Penumbra.ResidentResources.Reload();
         }
+
+        _cache.Conflicts.Sort();
     }
 
 
     // The ModCollectionCache contains all required temporary data to use a collection.
     // It will only be setup if a collection gets activated in any way.
-    private class Cache
+    private class Cache : IDisposable
     {
         // Shared caches to avoid allocations.
         private static readonly BitArray                        FileSeen         = new(256);
         private static readonly Dictionary< Utf8GamePath, int > RegisteredFiles  = new(256);
         private static readonly List< ModSettings? >            ResolvedSettings = new(128);
 
-        private readonly ModCollection2                       _collection;
+        private readonly ModCollection                        _collection;
         private readonly SortedList< string, object? >        _changedItems = new();
         public readonly  Dictionary< Utf8GamePath, FullPath > ResolvedFiles = new();
         public readonly  HashSet< FullPath >                  MissingFiles  = new();
@@ -102,12 +117,35 @@ public partial class ModCollection2
             }
         }
 
-        public Cache( ModCollection2 collection )
+        public Cache( ModCollection collection )
         {
-            _collection       = collection;
-            MetaManipulations = new MetaManager( collection );
+            _collection                    =  collection;
+            MetaManipulations              =  new MetaManager( collection );
+            _collection.ModSettingChanged  += OnModSettingChange;
+            _collection.InheritanceChanged += OnInheritanceChange;
         }
 
+        public void Dispose()
+        {
+            _collection.ModSettingChanged  -= OnModSettingChange;
+            _collection.InheritanceChanged -= OnInheritanceChange;
+        }
+
+        private void OnModSettingChange( ModSettingChange type, int modIdx, int oldValue, string? optionName, bool _ )
+        {
+            if( type == ModSettingChange.Priority && !Conflicts.ModConflicts( modIdx ).Any()
+            || type  == ModSettingChange.Setting  && !_collection[ modIdx ].Settings!.Enabled )
+            {
+                return;
+            }
+
+            var hasMeta = Penumbra.ModManager[ modIdx ].Resources.MetaManipulations.Count       > 0;
+            _collection.CalculateEffectiveFileList( hasMeta, Penumbra.CollectionManager.Default == _collection );
+        }
+
+        private void OnInheritanceChange( bool _ )
+            => _collection.CalculateEffectiveFileList( true, true );
+
         private static void ResetFileSeen( int size )
         {
             if( size < FileSeen.Length )
@@ -136,6 +174,7 @@ public partial class ModCollection2
         {
             ClearStorageAndPrepare();
 
+            Conflicts.ClearFileConflicts();
             for( var i = 0; i < Penumbra.ModManager.Mods.Count; ++i )
             {
                 if( ResolvedSettings[ i ]?.Enabled == true )
@@ -240,7 +279,7 @@ public partial class ModCollection2
             }
         }
 
-        private void AddPathsForOption( Option option, ModData mod, int modIdx, bool enabled )
+        private void AddPathsForOption( Option option, Mod.Mod mod, int modIdx, bool enabled )
         {
             foreach( var (file, paths) in option.OptionFiles )
             {
@@ -270,7 +309,7 @@ public partial class ModCollection2
             }
         }
 
-        private void AddFilesForSingle( OptionGroup singleGroup, ModData mod, int modIdx )
+        private void AddFilesForSingle( OptionGroup singleGroup, Mod.Mod mod, int modIdx )
         {
             Debug.Assert( singleGroup.SelectionType == SelectType.Single );
             var settings = ResolvedSettings[ modIdx ]!;
@@ -285,7 +324,7 @@ public partial class ModCollection2
             }
         }
 
-        private void AddFilesForMulti( OptionGroup multiGroup, ModData mod, int modIdx )
+        private void AddFilesForMulti( OptionGroup multiGroup, Mod.Mod mod, int modIdx )
         {
             Debug.Assert( multiGroup.SelectionType == SelectType.Multi );
             var settings = ResolvedSettings[ modIdx ]!;
@@ -301,7 +340,7 @@ public partial class ModCollection2
             }
         }
 
-        private void AddRemainingFiles( ModData mod, int modIdx )
+        private void AddRemainingFiles( Mod.Mod mod, int modIdx )
         {
             for( var i = 0; i < mod.Resources.ModFiles.Count; ++i )
             {
diff --git a/Penumbra/Collections/ModCollection.Changes.cs b/Penumbra/Collections/ModCollection.Changes.cs
index 02f6f240..2cfd00ef 100644
--- a/Penumbra/Collections/ModCollection.Changes.cs
+++ b/Penumbra/Collections/ModCollection.Changes.cs
@@ -11,9 +11,9 @@ public enum ModSettingChange
     Setting,
 }
 
-public partial class ModCollection2
+public partial class ModCollection
 {
-    public delegate void ModSettingChangeDelegate( ModSettingChange type, int modIdx, int oldValue, string? optionName );
+    public delegate void ModSettingChangeDelegate( ModSettingChange type, int modIdx, int oldValue, string? optionName, bool inherited );
     public event ModSettingChangeDelegate ModSettingChanged;
 
     // Enable or disable the mod inheritance of mod idx.
@@ -21,7 +21,7 @@ public partial class ModCollection2
     {
         if( FixInheritance( idx, inherit ) )
         {
-            ModSettingChanged.Invoke( ModSettingChange.Inheritance, idx, inherit ? 0 : 1, null );
+            ModSettingChanged.Invoke( ModSettingChange.Inheritance, idx, inherit ? 0 : 1, null, false );
         }
     }
 
@@ -32,9 +32,9 @@ public partial class ModCollection2
         var oldValue = _settings[ idx ]?.Enabled ?? this[ idx ].Settings?.Enabled ?? false;
         if( newValue != oldValue )
         {
-            var inheritance = FixInheritance( idx, true );
+            var inheritance = FixInheritance( idx, false );
             _settings[ idx ]!.Enabled = newValue;
-            ModSettingChanged.Invoke( ModSettingChange.EnableState, idx, inheritance ? -1 : newValue ? 0 : 1, null );
+            ModSettingChanged.Invoke( ModSettingChange.EnableState, idx, inheritance ? -1 : newValue ? 0 : 1, null, false );
         }
     }
 
@@ -45,9 +45,9 @@ public partial class ModCollection2
         var oldValue = _settings[ idx ]?.Priority ?? this[ idx ].Settings?.Priority ?? 0;
         if( newValue != oldValue )
         {
-            var inheritance = FixInheritance( idx, true );
+            var inheritance = FixInheritance( idx, false );
             _settings[ idx ]!.Priority = newValue;
-            ModSettingChanged.Invoke( ModSettingChange.Priority, idx, inheritance ? -1 : oldValue, null );
+            ModSettingChanged.Invoke( ModSettingChange.Priority, idx, inheritance ? -1 : oldValue, null, false );
         }
     }
 
@@ -63,10 +63,10 @@ public partial class ModCollection2
                 : newValue;
         if( oldValue != newValue )
         {
-            var inheritance = FixInheritance( idx, true );
+            var inheritance = FixInheritance( idx, false );
             _settings[ idx ]!.Settings[ settingName ] = newValue;
             _settings[ idx ]!.FixSpecificSetting( settingName, Penumbra.ModManager.Mods[ idx ].Meta );
-            ModSettingChanged.Invoke( ModSettingChange.Setting, idx, inheritance ? -1 : oldValue, settingName );
+            ModSettingChanged.Invoke( ModSettingChange.Setting, idx, inheritance ? -1 : oldValue, settingName, false );
         }
     }
 
@@ -108,6 +108,14 @@ public partial class ModCollection2
         return false;
     }
 
-    private void SaveOnChange( ModSettingChange _1, int _2, int _3, string? _4 )
-        => Save();
+    private void SaveOnChange( ModSettingChange _1, int _2, int _3, string? _4, bool inherited )
+        => SaveOnChange( inherited );
+
+    private void SaveOnChange( bool inherited )
+    {
+        if( !inherited )
+        {
+            Save();
+        }
+    }
 }
\ No newline at end of file
diff --git a/Penumbra/Collections/ModCollection.Inheritance.cs b/Penumbra/Collections/ModCollection.Inheritance.cs
index dee20aef..158e0159 100644
--- a/Penumbra/Collections/ModCollection.Inheritance.cs
+++ b/Penumbra/Collections/ModCollection.Inheritance.cs
@@ -6,16 +6,16 @@ using Penumbra.Util;
 
 namespace Penumbra.Collections;
 
-public partial class ModCollection2
+public partial class ModCollection
 {
-    private readonly List< ModCollection2 > _inheritance = new();
+    private readonly List< ModCollection > _inheritance = new();
 
-    public event Action InheritanceChanged;
+    public event Action< bool > InheritanceChanged;
 
-    public IReadOnlyList< ModCollection2 > Inheritance
+    public IReadOnlyList< ModCollection > Inheritance
         => _inheritance;
 
-    public IEnumerable< ModCollection2 > GetFlattenedInheritance()
+    public IEnumerable< ModCollection > GetFlattenedInheritance()
     {
         yield return this;
 
@@ -27,7 +27,7 @@ public partial class ModCollection2
         }
     }
 
-    public bool AddInheritance( ModCollection2 collection )
+    public bool AddInheritance( ModCollection collection )
     {
         if( ReferenceEquals( collection, this ) || _inheritance.Contains( collection ) )
         {
@@ -35,25 +35,41 @@ public partial class ModCollection2
         }
 
         _inheritance.Add( collection );
-        InheritanceChanged.Invoke();
+        collection.ModSettingChanged  += OnInheritedModSettingChange;
+        collection.InheritanceChanged += OnInheritedInheritanceChange;
+        InheritanceChanged.Invoke( false );
         return true;
     }
 
     public void RemoveInheritance( int idx )
     {
+        var inheritance = _inheritance[ idx ];
+        inheritance.ModSettingChanged  -= OnInheritedModSettingChange;
+        inheritance.InheritanceChanged -= OnInheritedInheritanceChange;
         _inheritance.RemoveAt( idx );
-        InheritanceChanged.Invoke();
+        InheritanceChanged.Invoke( false );
     }
 
     public void MoveInheritance( int from, int to )
     {
         if( _inheritance.Move( from, to ) )
         {
-            InheritanceChanged.Invoke();
+            InheritanceChanged.Invoke( false );
         }
     }
 
-    public (ModSettings? Settings, ModCollection2 Collection) this[ Index idx ]
+    private void OnInheritedModSettingChange( ModSettingChange type, int modIdx, int oldValue, string? optionName, bool _ )
+    {
+        if( _settings[ modIdx ] == null )
+        {
+            ModSettingChanged.Invoke( type, modIdx, oldValue, optionName, true );
+        }
+    }
+
+    private void OnInheritedInheritanceChange( bool _ )
+        => InheritanceChanged.Invoke( true );
+
+    public (ModSettings? Settings, ModCollection Collection) this[ Index idx ]
     {
         get
         {
diff --git a/Penumbra/Collections/ModCollection.Migration.cs b/Penumbra/Collections/ModCollection.Migration.cs
index abd935ab..19a89036 100644
--- a/Penumbra/Collections/ModCollection.Migration.cs
+++ b/Penumbra/Collections/ModCollection.Migration.cs
@@ -3,11 +3,11 @@ using Penumbra.Mod;
 
 namespace Penumbra.Collections;
 
-public sealed partial class ModCollection2
+public sealed partial class ModCollection
 {
     private static class Migration
     {
-        public static void Migrate( ModCollection2 collection )
+        public static void Migrate( ModCollection collection )
         {
             var changes = MigrateV0ToV1( collection );
             if( changes )
@@ -16,7 +16,7 @@ public sealed partial class ModCollection2
             }
         }
 
-        private static bool MigrateV0ToV1( ModCollection2 collection )
+        private static bool MigrateV0ToV1( ModCollection collection )
         {
             if( collection.Version > 0 )
             {
diff --git a/Penumbra/Collections/ModCollection.cs b/Penumbra/Collections/ModCollection.cs
index 5f6c46ea..ce90144d 100644
--- a/Penumbra/Collections/ModCollection.cs
+++ b/Penumbra/Collections/ModCollection.cs
@@ -16,15 +16,25 @@ namespace Penumbra.Collections;
 // It is meant to be local only, and thus should always contain settings for every mod, not just the enabled ones.
 // Settings to mods that are not installed anymore are kept as long as no call to CleanUnavailableSettings is made.
 // Active ModCollections build a cache of currently relevant data.
-public partial class ModCollection2
+public partial class ModCollection
 {
     public const int    CurrentVersion    = 1;
     public const string DefaultCollection = "Default";
+    public const string EmptyCollection   = "None";
 
-    public static readonly ModCollection2 Empty = CreateNewEmpty( "None" );
+    public static readonly ModCollection Empty = CreateEmpty();
+
+    private static ModCollection CreateEmpty()
+    {
+        var collection = CreateNewEmpty( EmptyCollection );
+        collection.Index = 0;
+        collection._settings.Clear();
+        return collection;
+    }
 
     public string Name { get; private init; }
     public int Version { get; private set; }
+    public int Index { get; private set; } = -1;
 
     private readonly List< ModSettings? > _settings;
 
@@ -37,7 +47,7 @@ public partial class ModCollection2
     private readonly Dictionary< string, ModSettings > _unusedSettings;
 
 
-    private ModCollection2( string name, ModCollection2 duplicate )
+    private ModCollection( string name, ModCollection duplicate )
     {
         Name               =  name;
         Version            =  duplicate.Version;
@@ -45,10 +55,10 @@ public partial class ModCollection2
         _unusedSettings    =  duplicate._unusedSettings.ToDictionary( kvp => kvp.Key, kvp => kvp.Value.DeepCopy() );
         _inheritance       =  duplicate._inheritance.ToList();
         ModSettingChanged  += SaveOnChange;
-        InheritanceChanged += Save;
+        InheritanceChanged += SaveOnChange;
     }
 
-    private ModCollection2( string name, int version, Dictionary< string, ModSettings > allSettings )
+    private ModCollection( string name, int version, Dictionary< string, ModSettings > allSettings )
     {
         Name            = name;
         Version         = version;
@@ -66,19 +76,19 @@ public partial class ModCollection2
 
         Migration.Migrate( this );
         ModSettingChanged  += SaveOnChange;
-        InheritanceChanged += Save;
+        InheritanceChanged += SaveOnChange;
     }
 
-    public static ModCollection2 CreateNewEmpty( string name )
+    public static ModCollection CreateNewEmpty( string name )
         => new(name, CurrentVersion, new Dictionary< string, ModSettings >());
 
-    public ModCollection2 Duplicate( string name )
+    public ModCollection Duplicate( string name )
         => new(name, this);
 
-    internal static ModCollection2 MigrateFromV0( string name, Dictionary< string, ModSettings > allSettings )
+    internal static ModCollection MigrateFromV0( string name, Dictionary< string, ModSettings > allSettings )
         => new(name, 0, allSettings);
 
-    private void CleanUnavailableSettings()
+    public void CleanUnavailableSettings()
     {
         var any = _unusedSettings.Count > 0;
         _unusedSettings.Clear();
@@ -88,7 +98,7 @@ public partial class ModCollection2
         }
     }
 
-    public void AddMod( ModData mod )
+    public void AddMod( Mod.Mod mod )
     {
         if( _unusedSettings.TryGetValue( mod.BasePath.Name, out var settings ) )
         {
@@ -101,7 +111,7 @@ public partial class ModCollection2
         }
     }
 
-    public void RemoveMod( ModData mod, int idx )
+    public void RemoveMod( Mod.Mod mod, int idx )
     {
         var settings = _settings[ idx ];
         if( settings != null )
@@ -165,6 +175,11 @@ public partial class ModCollection2
 
     public void Delete()
     {
+        if( Index == 0 )
+        {
+            return;
+        }
+
         var file = FileName;
         if( file.Exists )
         {
@@ -179,7 +194,7 @@ public partial class ModCollection2
         }
     }
 
-    public static ModCollection2? LoadFromFile( FileInfo file, out IReadOnlyList< string > inheritance )
+    public static ModCollection? LoadFromFile( FileInfo file, out IReadOnlyList< string > inheritance )
     {
         inheritance = Array.Empty< string >();
         if( !file.Exists )
@@ -197,7 +212,7 @@ public partial class ModCollection2
              ?? new Dictionary< string, ModSettings >();
             inheritance = obj[ nameof( Inheritance ) ]?.ToObject< List< string > >() ?? ( IReadOnlyList< string > )Array.Empty< string >();
 
-            return new ModCollection2( name, version, settings );
+            return new ModCollection( name, version, settings );
         }
         catch( Exception e )
         {
diff --git a/Penumbra/Interop/Loader/ResourceLoader.Replacement.cs b/Penumbra/Interop/Loader/ResourceLoader.Replacement.cs
index 3d869944..de7308a5 100644
--- a/Penumbra/Interop/Loader/ResourceLoader.Replacement.cs
+++ b/Penumbra/Interop/Loader/ResourceLoader.Replacement.cs
@@ -8,6 +8,7 @@ using FFXIVClientStructs.FFXIV.Client.System.Resource;
 using Penumbra.GameData.ByteString;
 using Penumbra.GameData.Enums;
 using Penumbra.Interop.Structs;
+using Penumbra.Mod;
 using Penumbra.Mods;
 using FileMode = Penumbra.Interop.Structs.FileMode;
 using ResourceHandle = FFXIVClientStructs.FFXIV.Client.System.Resource.Handle.ResourceHandle;
@@ -92,7 +93,7 @@ public unsafe partial class ResourceLoader
     // Use the default method of path replacement.
     public static (FullPath?, object?) DefaultResolver( Utf8GamePath path )
     {
-        var resolved = ModManager.ResolvePath( path );
+        var resolved = Mod.Mod.Manager.ResolvePath( path );
         return ( resolved, null );
     }
 
diff --git a/Penumbra/Interop/Resolver/PathResolver.Data.cs b/Penumbra/Interop/Resolver/PathResolver.Data.cs
index ba8d6b05..7a7b5e84 100644
--- a/Penumbra/Interop/Resolver/PathResolver.Data.cs
+++ b/Penumbra/Interop/Resolver/PathResolver.Data.cs
@@ -91,10 +91,10 @@ public unsafe partial class PathResolver
 
     // This map links DrawObjects directly to Actors (by ObjectTable index) and their collections.
     // It contains any DrawObjects that correspond to a human actor, even those without specific collections.
-    internal readonly Dictionary< IntPtr, (ModCollection2, int) > DrawObjectToObject = new();
+    internal readonly Dictionary< IntPtr, (ModCollection, int) > DrawObjectToObject = new();
 
     // This map links files to their corresponding collection, if it is non-default.
-    internal readonly ConcurrentDictionary< Utf8String, ModCollection2 > PathCollections = new();
+    internal readonly ConcurrentDictionary< Utf8String, ModCollection > PathCollections = new();
 
     internal GameObject* LastGameObject = null;
 
@@ -159,7 +159,7 @@ public unsafe partial class PathResolver
     }
 
     // Identify the correct collection for a GameObject by index and name.
-    private static ModCollection2 IdentifyCollection( GameObject* gameObject )
+    private static ModCollection IdentifyCollection( GameObject* gameObject )
     {
         if( gameObject == null )
         {
@@ -180,9 +180,9 @@ public unsafe partial class PathResolver
     }
 
     // Update collections linked to Game/DrawObjects due to a change in collection configuration.
-    private void CheckCollections( ModCollection2? _1, ModCollection2? _2, CollectionType type, string? name )
+    private void CheckCollections( ModCollection? _1, ModCollection? _2, ModCollection.Type type, string? name )
     {
-        if( type is not (CollectionType.Character or CollectionType.Default) )
+        if( type is not (ModCollection.Type.Character or ModCollection.Type.Default) )
         {
             return;
         }
@@ -200,7 +200,7 @@ public unsafe partial class PathResolver
     }
 
     // Use the stored information to find the GameObject and Collection linked to a DrawObject.
-    private GameObject* FindParent( IntPtr drawObject, out ModCollection2 collection )
+    private GameObject* FindParent( IntPtr drawObject, out ModCollection collection )
     {
         if( DrawObjectToObject.TryGetValue( drawObject, out var data ) )
         {
@@ -225,7 +225,7 @@ public unsafe partial class PathResolver
 
 
     // Special handling for paths so that we do not store non-owned temporary strings in the dictionary.
-    private void SetCollection( Utf8String path, ModCollection2 collection )
+    private void SetCollection( Utf8String path, ModCollection collection )
     {
         if( PathCollections.ContainsKey( path ) || path.IsOwned )
         {
diff --git a/Penumbra/Interop/Resolver/PathResolver.Material.cs b/Penumbra/Interop/Resolver/PathResolver.Material.cs
index 51aeeae8..27d3ebcd 100644
--- a/Penumbra/Interop/Resolver/PathResolver.Material.cs
+++ b/Penumbra/Interop/Resolver/PathResolver.Material.cs
@@ -41,7 +41,7 @@ public unsafe partial class PathResolver
         return ret;
     }
 
-    private ModCollection2? _mtrlCollection;
+    private ModCollection? _mtrlCollection;
 
     private void LoadMtrlHelper( IntPtr mtrlResourceHandle )
     {
@@ -56,7 +56,7 @@ public unsafe partial class PathResolver
     }
 
     // Check specifically for shpk and tex files whether we are currently in a material load.
-    private bool HandleMaterialSubFiles( ResourceType type, out ModCollection2? collection )
+    private bool HandleMaterialSubFiles( ResourceType type, out ModCollection? collection )
     {
         if( _mtrlCollection != null && type is ResourceType.Tex or ResourceType.Shpk )
         {
@@ -96,7 +96,7 @@ public unsafe partial class PathResolver
     }
 
     // Materials need to be set per collection so they can load their textures independently from each other.
-    private static void HandleMtrlCollection( ModCollection2 collection, string path, bool nonDefault, ResourceType type, FullPath? resolved,
+    private static void HandleMtrlCollection( ModCollection collection, string path, bool nonDefault, ResourceType type, FullPath? resolved,
         out (FullPath?, object?) data )
     {
         if( nonDefault && type == ResourceType.Mtrl )
diff --git a/Penumbra/Interop/Resolver/PathResolver.Meta.cs b/Penumbra/Interop/Resolver/PathResolver.Meta.cs
index d32eee9f..b678028d 100644
--- a/Penumbra/Interop/Resolver/PathResolver.Meta.cs
+++ b/Penumbra/Interop/Resolver/PathResolver.Meta.cs
@@ -161,7 +161,7 @@ public unsafe partial class PathResolver
         RspSetupCharacterHook?.Dispose();
     }
 
-    private ModCollection2? GetCollection( IntPtr drawObject )
+    private ModCollection? GetCollection( IntPtr drawObject )
     {
         var parent = FindParent( drawObject, out var collection );
         if( parent == null || collection == Penumbra.CollectionManager.Default )
@@ -195,7 +195,7 @@ public unsafe partial class PathResolver
             }
         }
 
-        public static MetaChanger ChangeEqp( ModCollection2 collection )
+        public static MetaChanger ChangeEqp( ModCollection collection )
         {
 #if USE_EQP
             collection.SetEqpFiles();
@@ -233,7 +233,7 @@ public unsafe partial class PathResolver
             return new MetaChanger( MetaManipulation.Type.Unknown );
         }
 
-        public static MetaChanger ChangeEqdp( ModCollection2 collection )
+        public static MetaChanger ChangeEqdp( ModCollection collection )
         {
 #if USE_EQDP
             collection.SetEqdpFiles();
@@ -269,7 +269,7 @@ public unsafe partial class PathResolver
             return new MetaChanger( MetaManipulation.Type.Unknown );
         }
 
-        public static MetaChanger ChangeCmp( PathResolver resolver, out ModCollection2? collection )
+        public static MetaChanger ChangeCmp( PathResolver resolver, out ModCollection? collection )
         {
             if( resolver.LastGameObject != null )
             {
diff --git a/Penumbra/Interop/Resolver/PathResolver.Resolve.cs b/Penumbra/Interop/Resolver/PathResolver.Resolve.cs
index eea23033..ebdb9ff0 100644
--- a/Penumbra/Interop/Resolver/PathResolver.Resolve.cs
+++ b/Penumbra/Interop/Resolver/PathResolver.Resolve.cs
@@ -130,7 +130,7 @@ public unsafe partial class PathResolver
 
     // Just add or remove the resolved path.
     [MethodImpl( MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization )]
-    private IntPtr ResolvePathDetour( ModCollection2 collection, IntPtr path )
+    private IntPtr ResolvePathDetour( ModCollection collection, IntPtr path )
     {
         if( path == IntPtr.Zero )
         {
diff --git a/Penumbra/Interop/Resolver/PathResolver.cs b/Penumbra/Interop/Resolver/PathResolver.cs
index 4c85380c..7f2c89e7 100644
--- a/Penumbra/Interop/Resolver/PathResolver.cs
+++ b/Penumbra/Interop/Resolver/PathResolver.cs
@@ -104,9 +104,9 @@ public partial class PathResolver : IDisposable
         Penumbra.CollectionManager.CollectionChanged -= OnCollectionChange;
     }
 
-    private void OnCollectionChange( ModCollection2? _1, ModCollection2? _2, CollectionType type, string? characterName )
+    private void OnCollectionChange( ModCollection? _1, ModCollection? _2, ModCollection.Type type, string? characterName )
     {
-        if( type != CollectionType.Character )
+        if( type != ModCollection.Type.Character )
         {
             return;
         }
diff --git a/Penumbra/Meta/Manager/MetaManager.Imc.cs b/Penumbra/Meta/Manager/MetaManager.Imc.cs
index 2a6e3a37..a4f32b76 100644
--- a/Penumbra/Meta/Manager/MetaManager.Imc.cs
+++ b/Penumbra/Meta/Manager/MetaManager.Imc.cs
@@ -19,11 +19,11 @@ public partial class MetaManager
         public readonly Dictionary< Utf8GamePath, ImcFile > Files         = new();
         public readonly Dictionary< ImcManipulation, int >  Manipulations = new();
 
-        private readonly ModCollection2 _collection;
+        private readonly ModCollection _collection;
         private static   int            _imcManagerCount;
 
 
-        public MetaManagerImc( ModCollection2 collection )
+        public MetaManagerImc( ModCollection collection )
         {
             _collection = collection;
             SetupDelegate();
@@ -156,7 +156,7 @@ public partial class MetaManager
         {
             // Only check imcs.
             if( resource->FileType != ResourceType.Imc
-            || resolveData is not ModCollection2 { HasCache: true } collection
+            || resolveData is not ModCollection { HasCache: true } collection
             || !collection.MetaCache!.Imc.Files.TryGetValue( gamePath, out var file )
             || !file.ChangesSinceLoad )
             {
diff --git a/Penumbra/Meta/Manager/MetaManager.cs b/Penumbra/Meta/Manager/MetaManager.cs
index 0672d953..06c97baf 100644
--- a/Penumbra/Meta/Manager/MetaManager.cs
+++ b/Penumbra/Meta/Manager/MetaManager.cs
@@ -51,7 +51,7 @@ public partial class MetaManager : IDisposable
           + Est.Manipulations.Count
           + Eqp.Manipulations.Count;
 
-    public MetaManager( ModCollection2 collection )
+    public MetaManager( ModCollection collection )
         => Imc = new MetaManagerImc( collection );
 
     public void SetFiles()
diff --git a/Penumbra/MigrateConfiguration.cs b/Penumbra/MigrateConfiguration.cs
index 742b1d5d..be9df0d4 100644
--- a/Penumbra/MigrateConfiguration.cs
+++ b/Penumbra/MigrateConfiguration.cs
@@ -34,7 +34,7 @@ public static class MigrateConfiguration
             return;
         }
 
-        var defaultCollection     = ModCollection2.CreateNewEmpty( ModCollection2.DefaultCollection );
+        var defaultCollection     = ModCollection.CreateNewEmpty( ModCollection.DefaultCollection );
         var defaultCollectionFile = defaultCollection.FileName;
         if( defaultCollectionFile.Exists )
         {
@@ -74,7 +74,7 @@ public static class MigrateConfiguration
                 }
             }
 
-            defaultCollection = ModCollection2.MigrateFromV0( ModCollection2.DefaultCollection, dict );
+            defaultCollection = ModCollection.MigrateFromV0( ModCollection.DefaultCollection, dict );
             defaultCollection.Save();
         }
         catch( Exception e )
diff --git a/Penumbra/Mod/FullMod.cs b/Penumbra/Mod/FullMod.cs
new file mode 100644
index 00000000..6ffe9152
--- /dev/null
+++ b/Penumbra/Mod/FullMod.cs
@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+using System.IO;
+using Penumbra.GameData.ByteString;
+
+namespace Penumbra.Mod;
+
+// A complete Mod containing settings (i.e. dependent on a collection)
+// and the resulting cache.
+public class FullMod
+{
+    public ModSettings Settings { get; }
+    public Mod Data { get; }
+
+    public FullMod( ModSettings settings, Mod data )
+    {
+        Settings = settings;
+        Data     = data;
+    }
+
+    public bool FixSettings()
+        => Settings.FixInvalidSettings( Data.Meta );
+
+    public HashSet< Utf8GamePath > GetFiles( FileInfo file )
+    {
+        var relPath = Utf8RelPath.FromFile( file, Data.BasePath, out var p ) ? p : Utf8RelPath.Empty;
+        return ModFunctions.GetFilesForConfig( relPath, Settings, Data.Meta );
+    }
+
+    public override string ToString()
+        => Data.Meta.Name;
+}
\ No newline at end of file
diff --git a/Penumbra/Mod/Mod.SortOrder.cs b/Penumbra/Mod/Mod.SortOrder.cs
new file mode 100644
index 00000000..0e9c39eb
--- /dev/null
+++ b/Penumbra/Mod/Mod.SortOrder.cs
@@ -0,0 +1,45 @@
+using System;
+using Penumbra.Mods;
+
+namespace Penumbra.Mod;
+
+public partial class Mod
+{
+    public struct SortOrder : IComparable< SortOrder >
+    {
+        public ModFolder ParentFolder { get; set; }
+
+        private string _sortOrderName;
+
+        public string SortOrderName
+        {
+            get => _sortOrderName;
+            set => _sortOrderName = value.Replace( '/', '\\' );
+        }
+
+        public string SortOrderPath
+            => ParentFolder.FullName;
+
+        public string FullName
+        {
+            get
+            {
+                var path = SortOrderPath;
+                return path.Length > 0 ? $"{path}/{SortOrderName}" : SortOrderName;
+            }
+        }
+
+
+        public SortOrder( ModFolder parentFolder, string name )
+        {
+            ParentFolder   = parentFolder;
+            _sortOrderName = name.Replace( '/', '\\' );
+        }
+
+        public string FullPath
+            => SortOrderPath.Length > 0 ? $"{SortOrderPath}/{SortOrderName}" : SortOrderName;
+
+        public int CompareTo( SortOrder other )
+            => string.Compare( FullPath, other.FullPath, StringComparison.InvariantCultureIgnoreCase );
+    }
+}
\ No newline at end of file
diff --git a/Penumbra/Mod/Mod.cs b/Penumbra/Mod/Mod.cs
index cda33a3f..d5f7cc2f 100644
--- a/Penumbra/Mod/Mod.cs
+++ b/Penumbra/Mod/Mod.cs
@@ -1,33 +1,96 @@
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
+using Dalamud.Logging;
 using Penumbra.GameData.ByteString;
+using Penumbra.Mods;
 
 namespace Penumbra.Mod;
 
-// A complete Mod containing settings (i.e. dependent on a collection)
-// and the resulting cache.
-public class Mod
+// Mod contains all permanent information about a mod,
+// and is independent of collections or settings.
+// It only changes when the user actively changes the mod or their filesystem.
+public partial class Mod
 {
-    public ModSettings Settings { get; }
-    public ModData Data { get; }
-    public ModCache Cache { get; }
+    public DirectoryInfo BasePath;
+    public ModMeta       Meta;
+    public ModResources  Resources;
 
-    public Mod( ModSettings settings, ModData data )
+    public SortOrder Order;
+
+    public SortedList< string, object? > ChangedItems { get; } = new();
+    public string LowerChangedItemsString { get; private set; } = string.Empty;
+    public FileInfo MetaFile { get; set; }
+    public int Index { get; private set; } = -1;
+
+    private Mod( ModFolder parentFolder, DirectoryInfo basePath, ModMeta meta, ModResources resources )
     {
-        Settings = settings;
-        Data     = data;
-        Cache    = new ModCache();
+        BasePath  = basePath;
+        Meta      = meta;
+        Resources = resources;
+        MetaFile  = MetaFileInfo( basePath );
+        Order     = new SortOrder( parentFolder, Meta.Name );
+        Order.ParentFolder.AddMod( this );
+        ComputeChangedItems();
     }
 
-    public bool FixSettings()
-        => Settings.FixInvalidSettings( Data.Meta );
-
-    public HashSet< Utf8GamePath > GetFiles( FileInfo file )
+    public void ComputeChangedItems()
     {
-        var relPath = Utf8RelPath.FromFile( file, Data.BasePath, out var p ) ? p : Utf8RelPath.Empty;
-        return ModFunctions.GetFilesForConfig( relPath, Settings, Data.Meta );
+        var identifier = GameData.GameData.GetIdentifier();
+        ChangedItems.Clear();
+        foreach( var file in Resources.ModFiles.Select( f => f.ToRelPath( BasePath, out var p ) ? p : Utf8RelPath.Empty ) )
+        {
+            foreach( var path in ModFunctions.GetAllFiles( file, Meta ) )
+            {
+                identifier.Identify( ChangedItems, path.ToGamePath() );
+            }
+        }
+
+        foreach( var path in Meta.FileSwaps.Keys )
+        {
+            identifier.Identify( ChangedItems, path.ToGamePath() );
+        }
+
+        LowerChangedItemsString = string.Join( "\0", ChangedItems.Keys.Select( k => k.ToLowerInvariant() ) );
     }
 
+    public static FileInfo MetaFileInfo( DirectoryInfo basePath )
+        => new(Path.Combine( basePath.FullName, "meta.json" ));
+
+    public static Mod? LoadMod( ModFolder parentFolder, DirectoryInfo basePath )
+    {
+        basePath.Refresh();
+        if( !basePath.Exists )
+        {
+            PluginLog.Error( $"Supplied mod directory {basePath} does not exist." );
+            return null;
+        }
+
+        var metaFile = MetaFileInfo( basePath );
+        if( !metaFile.Exists )
+        {
+            PluginLog.Debug( "No mod meta found for {ModLocation}.", basePath.Name );
+            return null;
+        }
+
+        var meta = ModMeta.LoadFromFile( metaFile );
+        if( meta == null )
+        {
+            return null;
+        }
+
+        var data = new ModResources();
+        if( data.RefreshModFiles( basePath ).HasFlag( ResourceChange.Meta ) )
+        {
+            data.SetManipulations( meta, basePath );
+        }
+
+        return new Mod( parentFolder, basePath, meta, data );
+    }
+
+    public void SaveMeta()
+        => Meta.SaveToFile( MetaFile );
+
     public override string ToString()
-        => Data.Meta.Name;
+        => Order.FullPath;
 }
\ No newline at end of file
diff --git a/Penumbra/Mod/ModCleanup.cs b/Penumbra/Mod/ModCleanup.cs
index 654c2174..0a2b3e4a 100644
--- a/Penumbra/Mod/ModCleanup.cs
+++ b/Penumbra/Mod/ModCleanup.cs
@@ -53,13 +53,13 @@ public class ModCleanup
         }
     }
 
-    private static DirectoryInfo CreateNewModDir( ModData mod, string optionGroup, string option )
+    private static DirectoryInfo CreateNewModDir( Mod mod, string optionGroup, string option )
     {
         var newName = $"{mod.BasePath.Name}_{optionGroup}_{option}";
         return TexToolsImport.CreateModFolder( new DirectoryInfo( Penumbra.Config.ModDirectory ), newName );
     }
 
-    private static ModData CreateNewMod( DirectoryInfo newDir, string newSortOrder )
+    private static Mod CreateNewMod( DirectoryInfo newDir, string newSortOrder )
     {
         var idx    = Penumbra.ModManager.AddMod( newDir );
         var newMod = Penumbra.ModManager.Mods[ idx ];
@@ -69,7 +69,7 @@ public class ModCleanup
         return newMod;
     }
 
-    private static ModMeta CreateNewMeta( DirectoryInfo newDir, ModData mod, string name, string optionGroup, string option )
+    private static ModMeta CreateNewMeta( DirectoryInfo newDir, Mod mod, string name, string optionGroup, string option )
     {
         var newMeta = new ModMeta
         {
@@ -82,7 +82,7 @@ public class ModCleanup
         return newMeta;
     }
 
-    private static void CreateModSplit( HashSet< string > unseenPaths, ModData mod, OptionGroup group, Option option )
+    private static void CreateModSplit( HashSet< string > unseenPaths, Mod mod, OptionGroup group, Option option )
     {
         try
         {
@@ -105,8 +105,8 @@ public class ModCleanup
             }
 
             var newSortOrder = group.SelectionType == SelectType.Single
-                ? $"{mod.SortOrder.ParentFolder.FullName}/{mod.Meta.Name}/{group.GroupName}/{option.OptionName}"
-                : $"{mod.SortOrder.ParentFolder.FullName}/{mod.Meta.Name}/{group.GroupName} - {option.OptionName}";
+                ? $"{mod.Order.ParentFolder.FullName}/{mod.Meta.Name}/{group.GroupName}/{option.OptionName}"
+                : $"{mod.Order.ParentFolder.FullName}/{mod.Meta.Name}/{group.GroupName} - {option.OptionName}";
             CreateNewMod( newDir, newSortOrder );
         }
         catch( Exception e )
@@ -115,7 +115,7 @@ public class ModCleanup
         }
     }
 
-    public static void SplitMod( ModData mod )
+    public static void SplitMod( Mod mod )
     {
         if( mod.Meta.Groups.Count == 0 )
         {
diff --git a/Penumbra/Mod/ModData.cs b/Penumbra/Mod/ModData.cs
deleted file mode 100644
index 6400a88d..00000000
--- a/Penumbra/Mod/ModData.cs
+++ /dev/null
@@ -1,135 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using Dalamud.Logging;
-using Penumbra.GameData.ByteString;
-using Penumbra.Mods;
-
-namespace Penumbra.Mod;
-
-public struct SortOrder : IComparable< SortOrder >
-{
-    public ModFolder ParentFolder { get; set; }
-
-    private string _sortOrderName;
-
-    public string SortOrderName
-    {
-        get => _sortOrderName;
-        set => _sortOrderName = value.Replace( '/', '\\' );
-    }
-
-    public string SortOrderPath
-        => ParentFolder.FullName;
-
-    public string FullName
-    {
-        get
-        {
-            var path = SortOrderPath;
-            return path.Length > 0 ? $"{path}/{SortOrderName}" : SortOrderName;
-        }
-    }
-
-
-    public SortOrder( ModFolder parentFolder, string name )
-    {
-        ParentFolder   = parentFolder;
-        _sortOrderName = name.Replace( '/', '\\' );
-    }
-
-    public string FullPath
-        => SortOrderPath.Length > 0 ? $"{SortOrderPath}/{SortOrderName}" : SortOrderName;
-
-    public int CompareTo( SortOrder other )
-        => string.Compare( FullPath, other.FullPath, StringComparison.InvariantCultureIgnoreCase );
-}
-
-// ModData contains all permanent information about a mod,
-// and is independent of collections or settings.
-// It only changes when the user actively changes the mod or their filesystem.
-public class ModData
-{
-    public DirectoryInfo BasePath;
-    public ModMeta       Meta;
-    public ModResources  Resources;
-
-    public SortOrder SortOrder;
-
-    public SortedList< string, object? > ChangedItems { get; } = new();
-    public string LowerChangedItemsString { get; private set; } = string.Empty;
-    public FileInfo MetaFile { get; set; }
-
-    private ModData( ModFolder parentFolder, DirectoryInfo basePath, ModMeta meta, ModResources resources )
-    {
-        BasePath  = basePath;
-        Meta      = meta;
-        Resources = resources;
-        MetaFile  = MetaFileInfo( basePath );
-        SortOrder = new SortOrder( parentFolder, Meta.Name );
-        SortOrder.ParentFolder.AddMod( this );
-
-        ComputeChangedItems();
-    }
-
-    public void ComputeChangedItems()
-    {
-        var identifier = GameData.GameData.GetIdentifier();
-        ChangedItems.Clear();
-        foreach( var file in Resources.ModFiles.Select( f => f.ToRelPath( BasePath, out var p ) ? p : Utf8RelPath.Empty ) )
-        {
-            foreach( var path in ModFunctions.GetAllFiles( file, Meta ) )
-            {
-                identifier.Identify( ChangedItems, path.ToGamePath() );
-            }
-        }
-
-        foreach( var path in Meta.FileSwaps.Keys )
-        {
-            identifier.Identify( ChangedItems, path.ToGamePath() );
-        }
-
-        LowerChangedItemsString = string.Join( "\0", ChangedItems.Keys.Select( k => k.ToLowerInvariant() ) );
-    }
-
-    public static FileInfo MetaFileInfo( DirectoryInfo basePath )
-        => new(Path.Combine( basePath.FullName, "meta.json" ));
-
-    public static ModData? LoadMod( ModFolder parentFolder, DirectoryInfo basePath )
-    {
-        basePath.Refresh();
-        if( !basePath.Exists )
-        {
-            PluginLog.Error( $"Supplied mod directory {basePath} does not exist." );
-            return null;
-        }
-
-        var metaFile = MetaFileInfo( basePath );
-        if( !metaFile.Exists )
-        {
-            PluginLog.Debug( "No mod meta found for {ModLocation}.", basePath.Name );
-            return null;
-        }
-
-        var meta = ModMeta.LoadFromFile( metaFile );
-        if( meta == null )
-        {
-            return null;
-        }
-
-        var data = new ModResources();
-        if( data.RefreshModFiles( basePath ).HasFlag( ResourceChange.Meta ) )
-        {
-            data.SetManipulations( meta, basePath );
-        }
-
-        return new ModData( parentFolder, basePath, meta, data );
-    }
-
-    public void SaveMeta()
-        => Meta.SaveToFile( MetaFile );
-
-    public override string ToString()
-        => SortOrder.FullPath;
-}
\ No newline at end of file
diff --git a/Penumbra/Mod/ModManager.cs b/Penumbra/Mod/ModManager.cs
new file mode 100644
index 00000000..5f30c6bd
--- /dev/null
+++ b/Penumbra/Mod/ModManager.cs
@@ -0,0 +1,286 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using Dalamud.Logging;
+using Penumbra.GameData.ByteString;
+using Penumbra.Meta;
+using Penumbra.Mod;
+using Penumbra.Mods;
+using Penumbra.Util;
+
+namespace Penumbra.Mod;
+
+public partial class Mod
+{
+    public enum ChangeType
+    {
+        Added,
+        Removed,
+        Changed,
+    }
+
+    // The ModManager handles the basic mods installed to the mod directory.
+    // It also contains the CollectionManager that handles all collections.
+    public class Manager : IEnumerable< Mod >
+    {
+        public DirectoryInfo BasePath { get; private set; } = null!;
+
+        private readonly List< Mod > _mods = new();
+
+        public Mod this[ int idx ]
+            => _mods[ idx ];
+
+        public IReadOnlyList< Mod > Mods
+            => _mods;
+
+        public IEnumerator< Mod > GetEnumerator()
+            => _mods.GetEnumerator();
+
+        IEnumerator IEnumerable.GetEnumerator()
+            => GetEnumerator();
+
+        public ModFolder StructuredMods { get; } = ModFileSystem.Root;
+
+        public delegate void ModChangeDelegate( ChangeType type, int modIndex, Mod mod );
+
+        public event ModChangeDelegate? ModChange;
+        public event Action? ModsRediscovered;
+
+        public bool Valid { get; private set; }
+
+        public int Count
+            => _mods.Count;
+
+        public Configuration Config
+            => Penumbra.Config;
+
+        public void DiscoverMods( string newDir )
+        {
+            SetBaseDirectory( newDir, false );
+            DiscoverMods();
+        }
+
+        private void SetBaseDirectory( string newPath, bool firstTime )
+        {
+            if( !firstTime && string.Equals( newPath, Config.ModDirectory, StringComparison.InvariantCultureIgnoreCase ) )
+            {
+                return;
+            }
+
+            if( newPath.Length == 0 )
+            {
+                Valid    = false;
+                BasePath = new DirectoryInfo( "." );
+            }
+            else
+            {
+                var newDir = new DirectoryInfo( newPath );
+                if( !newDir.Exists )
+                {
+                    try
+                    {
+                        Directory.CreateDirectory( newDir.FullName );
+                        newDir.Refresh();
+                    }
+                    catch( Exception e )
+                    {
+                        PluginLog.Error( $"Could not create specified mod directory {newDir.FullName}:\n{e}" );
+                    }
+                }
+
+                BasePath = newDir;
+                Valid    = true;
+                if( Config.ModDirectory != BasePath.FullName )
+                {
+                    Config.ModDirectory = BasePath.FullName;
+                    Config.Save();
+                }
+            }
+
+            ModsRediscovered?.Invoke();
+        }
+
+        public Manager()
+        {
+            SetBaseDirectory( Config.ModDirectory, true );
+        }
+
+        private bool SetSortOrderPath( Mod mod, string path )
+        {
+            mod.Move( path );
+            var fixedPath = mod.Order.FullPath;
+            if( fixedPath.Length == 0 || string.Equals( fixedPath, mod.Meta.Name, StringComparison.InvariantCultureIgnoreCase ) )
+            {
+                Config.ModSortOrder.Remove( mod.BasePath.Name );
+                return true;
+            }
+
+            if( path != fixedPath )
+            {
+                Config.ModSortOrder[ mod.BasePath.Name ] = fixedPath;
+                return true;
+            }
+
+            return false;
+        }
+
+        private void SetModStructure( bool removeOldPaths = false )
+        {
+            var changes = false;
+
+            foreach( var (folder, path) in Config.ModSortOrder.ToArray() )
+            {
+                if( path.Length > 0 && _mods.FindFirst( m => m.BasePath.Name == folder, out var mod ) )
+                {
+                    changes |= SetSortOrderPath( mod, path );
+                }
+                else if( removeOldPaths )
+                {
+                    changes = true;
+                    Config.ModSortOrder.Remove( folder );
+                }
+            }
+
+            if( changes )
+            {
+                Config.Save();
+            }
+        }
+
+        public void DiscoverMods()
+        {
+            _mods.Clear();
+            BasePath.Refresh();
+
+            StructuredMods.SubFolders.Clear();
+            StructuredMods.Mods.Clear();
+            if( Valid && BasePath.Exists )
+            {
+                foreach( var modFolder in BasePath.EnumerateDirectories() )
+                {
+                    var mod = LoadMod( StructuredMods, modFolder );
+                    if( mod == null )
+                    {
+                        continue;
+                    }
+
+                    mod.Index = _mods.Count;
+                    _mods.Add( mod );
+                }
+
+                SetModStructure();
+            }
+
+            ModsRediscovered?.Invoke();
+        }
+
+        public void DeleteMod( DirectoryInfo modFolder )
+        {
+            if( Directory.Exists( modFolder.FullName ) )
+            {
+                try
+                {
+                    Directory.Delete( modFolder.FullName, true );
+                }
+                catch( Exception e )
+                {
+                    PluginLog.Error( $"Could not delete the mod {modFolder.Name}:\n{e}" );
+                }
+            }
+
+            var idx = _mods.FindIndex( m => m.BasePath.Name == modFolder.Name );
+            if( idx >= 0 )
+            {
+                var mod = _mods[ idx ];
+                mod.Order.ParentFolder.RemoveMod( mod );
+                _mods.RemoveAt( idx );
+                for( var i = idx; i < _mods.Count; ++i )
+                {
+                    --_mods[ i ].Index;
+                }
+
+                ModChange?.Invoke( ChangeType.Removed, idx, mod );
+            }
+        }
+
+        public int AddMod( DirectoryInfo modFolder )
+        {
+            var mod = LoadMod( StructuredMods, modFolder );
+            if( mod == null )
+            {
+                return -1;
+            }
+
+            if( Config.ModSortOrder.TryGetValue( mod.BasePath.Name, out var sortOrder ) )
+            {
+                if( SetSortOrderPath( mod, sortOrder ) )
+                {
+                    Config.Save();
+                }
+            }
+
+            if( _mods.Any( m => m.BasePath.Name == modFolder.Name ) )
+            {
+                return -1;
+            }
+
+            _mods.Add( mod );
+            ModChange?.Invoke( ChangeType.Added, _mods.Count - 1, mod );
+
+            return _mods.Count - 1;
+        }
+
+        public bool UpdateMod( int idx, bool reloadMeta = false, bool recomputeMeta = false, bool force = false )
+        {
+            var mod         = Mods[ idx ];
+            var oldName     = mod.Meta.Name;
+            var metaChanges = mod.Meta.RefreshFromFile( mod.MetaFile ) || force;
+            var fileChanges = mod.Resources.RefreshModFiles( mod.BasePath );
+
+            if( !recomputeMeta && !reloadMeta && !metaChanges && fileChanges == 0 )
+            {
+                return false;
+            }
+
+            if( metaChanges || fileChanges.HasFlag( ResourceChange.Files ) )
+            {
+                mod.ComputeChangedItems();
+                if( Config.ModSortOrder.TryGetValue( mod.BasePath.Name, out var sortOrder ) )
+                {
+                    mod.Move( sortOrder );
+                    var path = mod.Order.FullPath;
+                    if( path != sortOrder )
+                    {
+                        Config.ModSortOrder[ mod.BasePath.Name ] = path;
+                        Config.Save();
+                    }
+                }
+                else
+                {
+                    mod.Order = new SortOrder( StructuredMods, mod.Meta.Name );
+                }
+            }
+
+            var nameChange = !string.Equals( oldName, mod.Meta.Name, StringComparison.InvariantCulture );
+
+            recomputeMeta |= fileChanges.HasFlag( ResourceChange.Meta );
+            if( recomputeMeta )
+            {
+                mod.Resources.MetaManipulations.Update( mod.Resources.MetaFiles, mod.BasePath, mod.Meta );
+                mod.Resources.MetaManipulations.SaveToFile( MetaCollection.FileName( mod.BasePath ) );
+            }
+
+            // TODO: more specific mod changes?
+            ModChange?.Invoke( ChangeType.Changed, idx, mod );
+            return true;
+        }
+
+        public bool UpdateMod( Mod mod, bool reloadMeta = false, bool recomputeMeta = false, bool force = false )
+            => UpdateMod( Mods.IndexOf( mod ), reloadMeta, recomputeMeta, force );
+
+        public static FullPath? ResolvePath( Utf8GamePath gameResourcePath )
+            => Penumbra.CollectionManager.Default.ResolvePath( gameResourcePath );
+    }
+}
\ No newline at end of file
diff --git a/Penumbra/Mods/ModFileSystem.cs b/Penumbra/Mods/ModFileSystem.cs
index b0d01bd7..ba946687 100644
--- a/Penumbra/Mods/ModFileSystem.cs
+++ b/Penumbra/Mods/ModFileSystem.cs
@@ -37,7 +37,7 @@ public static partial class ModFileSystem
 
     // Rename the SortOrderName of a single mod. Slashes are replaced by Backslashes.
     // Saves and returns true if anything changed.
-    public static bool Rename( this ModData mod, string newName )
+    public static bool Rename( this Mod.Mod mod, string newName )
     {
         if( RenameNoSave( mod, newName ) )
         {
@@ -63,7 +63,7 @@ public static partial class ModFileSystem
 
     // Move a single mod to the target folder.
     // Returns true and saves if anything changed.
-    public static bool Move( this ModData mod, ModFolder target )
+    public static bool Move( this Mod.Mod mod, ModFolder target )
     {
         if( MoveNoSave( mod, target ) )
         {
@@ -76,7 +76,7 @@ public static partial class ModFileSystem
 
     // Move a mod to the filesystem location specified by sortOrder and rename its SortOrderName.
     // Creates all necessary Subfolders.
-    public static void Move( this ModData mod, string sortOrder )
+    public static void Move( this Mod.Mod mod, string sortOrder )
     {
         var split  = sortOrder.Split( new[] { '/' }, StringSplitOptions.RemoveEmptyEntries );
         var folder = Root;
@@ -129,7 +129,7 @@ public static partial class ModFileSystem
     {
         foreach( var mod in target.AllMods( true ) )
         {
-            Penumbra.Config.ModSortOrder[ mod.BasePath.Name ] = mod.SortOrder.FullName;
+            Penumbra.Config.ModSortOrder[ mod.BasePath.Name ] = mod.Order.FullName;
         }
 
         Penumbra.Config.Save();
@@ -137,16 +137,16 @@ public static partial class ModFileSystem
     }
 
     // Sets and saves the sort order of a single mod, removing the entry if it is unnecessary.
-    private static void SaveMod( ModData mod )
+    private static void SaveMod( Mod.Mod mod )
     {
-        if( ReferenceEquals( mod.SortOrder.ParentFolder, Root )
-        && string.Equals( mod.SortOrder.SortOrderName, mod.Meta.Name.Replace( '/', '\\' ), StringComparison.InvariantCultureIgnoreCase ) )
+        if( ReferenceEquals( mod.Order.ParentFolder, Root )
+        && string.Equals( mod.Order.SortOrderName, mod.Meta.Name.Replace( '/', '\\' ), StringComparison.InvariantCultureIgnoreCase ) )
         {
             Penumbra.Config.ModSortOrder.Remove( mod.BasePath.Name );
         }
         else
         {
-            Penumbra.Config.ModSortOrder[ mod.BasePath.Name ] = mod.SortOrder.FullName;
+            Penumbra.Config.ModSortOrder[ mod.BasePath.Name ] = mod.Order.FullName;
         }
 
         Penumbra.Config.Save();
@@ -184,30 +184,30 @@ public static partial class ModFileSystem
         return true;
     }
 
-    private static bool RenameNoSave( ModData mod, string newName )
+    private static bool RenameNoSave( Mod.Mod mod, string newName )
     {
         newName = newName.Replace( '/', '\\' );
-        if( mod.SortOrder.SortOrderName == newName )
+        if( mod.Order.SortOrderName == newName )
         {
             return false;
         }
 
-        mod.SortOrder.ParentFolder.RemoveModIgnoreEmpty( mod );
-        mod.SortOrder = new SortOrder( mod.SortOrder.ParentFolder, newName );
-        mod.SortOrder.ParentFolder.AddMod( mod );
+        mod.Order.ParentFolder.RemoveModIgnoreEmpty( mod );
+        mod.Order = new Mod.Mod.SortOrder( mod.Order.ParentFolder, newName );
+        mod.Order.ParentFolder.AddMod( mod );
         return true;
     }
 
-    private static bool MoveNoSave( ModData mod, ModFolder target )
+    private static bool MoveNoSave( Mod.Mod mod, ModFolder target )
     {
-        var oldParent = mod.SortOrder.ParentFolder;
+        var oldParent = mod.Order.ParentFolder;
         if( ReferenceEquals( target, oldParent ) )
         {
             return false;
         }
 
         oldParent.RemoveMod( mod );
-        mod.SortOrder = new SortOrder( target, mod.SortOrder.SortOrderName );
+        mod.Order = new Mod.Mod.SortOrder( target, mod.Order.SortOrderName );
         target.AddMod( mod );
         return true;
     }
diff --git a/Penumbra/Mods/ModFolder.cs b/Penumbra/Mods/ModFolder.cs
index 76768be0..e2369819 100644
--- a/Penumbra/Mods/ModFolder.cs
+++ b/Penumbra/Mods/ModFolder.cs
@@ -27,7 +27,7 @@ namespace Penumbra.Mods
         }
 
         public List< ModFolder > SubFolders { get; } = new();
-        public List< ModData > Mods { get; } = new();
+        public List< Mod.Mod > Mods { get; } = new();
 
         public ModFolder( ModFolder parent, string name )
         {
@@ -45,7 +45,7 @@ namespace Penumbra.Mods
             => SubFolders.Sum( f => f.TotalDescendantFolders() );
 
         // Return all descendant mods in the specified order.
-        public IEnumerable< ModData > AllMods( bool foldersFirst )
+        public IEnumerable< Mod.Mod > AllMods( bool foldersFirst )
         {
             if( foldersFirst )
             {
@@ -59,7 +59,7 @@ namespace Penumbra.Mods
                     return folder.AllMods( false );
                 }
 
-                return new[] { ( ModData )f };
+                return new[] { ( Mod.Mod )f };
             } );
         }
 
@@ -116,7 +116,7 @@ namespace Penumbra.Mods
 
         // Add the given mod as a child, if it is not already a child.
         // Returns the index of the found or inserted mod.
-        public int AddMod( ModData mod )
+        public int AddMod( Mod.Mod mod )
         {
             var idx = Mods.BinarySearch( mod, ModComparer );
             if( idx >= 0 )
@@ -132,7 +132,7 @@ namespace Penumbra.Mods
 
         // Remove mod as a child if it exists.
         // If this folder is empty afterwards, remove it from its parent.
-        public void RemoveMod( ModData mod )
+        public void RemoveMod( Mod.Mod mod )
         {
             RemoveModIgnoreEmpty( mod );
             CheckEmpty();
@@ -157,20 +157,20 @@ namespace Penumbra.Mods
                     : string.Compare( x?.Name ?? string.Empty, y?.Name ?? string.Empty, CompareType );
         }
 
-        internal class ModDataComparer : IComparer< ModData >
+        internal class ModDataComparer : IComparer< Mod.Mod >
         {
             public StringComparison CompareType = StringComparison.InvariantCultureIgnoreCase;
 
             // Compare only the direct SortOrderNames since this is only used inside an enumeration of direct mod children of one folder.
             // Since mod SortOrderNames do not have to be unique inside a folder, also compare their BasePaths (and thus their identity) if necessary.
-            public int Compare( ModData? x, ModData? y )
+            public int Compare( Mod.Mod? x, Mod.Mod? y )
             {
                 if( ReferenceEquals( x, y ) )
                 {
                     return 0;
                 }
 
-                var cmp = string.Compare( x?.SortOrder.SortOrderName, y?.SortOrder.SortOrderName, CompareType );
+                var cmp = string.Compare( x?.Order.SortOrderName, y?.Order.SortOrderName, CompareType );
                 if( cmp != 0 )
                 {
                     return cmp;
@@ -193,7 +193,7 @@ namespace Penumbra.Mods
                 for( ; modIdx < Mods.Count; ++modIdx )
                 {
                     var mod       = Mods[ modIdx ];
-                    var modString = mod.SortOrder.SortOrderName;
+                    var modString = mod.Order.SortOrderName;
                     if( string.Compare( folderString, modString, StringComparison.InvariantCultureIgnoreCase ) > 0 )
                     {
                         yield return mod;
@@ -235,7 +235,7 @@ namespace Penumbra.Mods
         }
 
         // Remove a mod, but do not remove this folder from its parent if it is empty afterwards.
-        internal void RemoveModIgnoreEmpty( ModData mod )
+        internal void RemoveModIgnoreEmpty( Mod.Mod mod )
         {
             var idx = Mods.BinarySearch( mod, ModComparer );
             if( idx >= 0 )
diff --git a/Penumbra/Mods/ModManager.Directory.cs b/Penumbra/Mods/ModManager.Directory.cs
index 59f52ace..c8149a65 100644
--- a/Penumbra/Mods/ModManager.Directory.cs
+++ b/Penumbra/Mods/ModManager.Directory.cs
@@ -9,9 +9,9 @@ namespace Penumbra.Mods;
 
 public partial class ModManagerNew
 {
-    private readonly List< ModData > _mods = new();
+    private readonly List< Mod.Mod > _mods = new();
 
-    public IReadOnlyList< ModData > Mods
+    public IReadOnlyList< Mod.Mod > Mods
         => _mods;
 
     public void DiscoverMods()
diff --git a/Penumbra/Mods/ModManager.cs b/Penumbra/Mods/ModManager.cs
deleted file mode 100644
index b88a9bca..00000000
--- a/Penumbra/Mods/ModManager.cs
+++ /dev/null
@@ -1,276 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using Dalamud.Logging;
-using Penumbra.GameData.ByteString;
-using Penumbra.Meta;
-using Penumbra.Mod;
-using Penumbra.Util;
-
-namespace Penumbra.Mods;
-
-public enum ModChangeType
-{
-    Added,
-    Removed,
-    Changed,
-}
-
-public delegate void ModChangeDelegate( ModChangeType type, int modIndex, ModData modData );
-
-// The ModManager handles the basic mods installed to the mod directory.
-// It also contains the CollectionManager that handles all collections.
-public class ModManager : IEnumerable< ModData >
-{
-    public DirectoryInfo BasePath { get; private set; } = null!;
-
-    private readonly List< ModData > _mods = new();
-
-    public ModData this[ int idx ]
-        => _mods[ idx ];
-
-    public IReadOnlyList< ModData > Mods
-        => _mods;
-
-    public IEnumerator< ModData > GetEnumerator()
-        => _mods.GetEnumerator();
-
-    IEnumerator IEnumerable.GetEnumerator()
-        => GetEnumerator();
-
-    public ModFolder StructuredMods { get; } = ModFileSystem.Root;
-
-    public event ModChangeDelegate? ModChange;
-    public event Action? ModsRediscovered;
-
-    public bool Valid { get; private set; }
-
-    public int Count
-        => _mods.Count;
-
-    public Configuration Config
-        => Penumbra.Config;
-
-    public void DiscoverMods( string newDir )
-    {
-        SetBaseDirectory( newDir, false );
-        DiscoverMods();
-    }
-
-    private void SetBaseDirectory( string newPath, bool firstTime )
-    {
-        if( !firstTime && string.Equals( newPath, Config.ModDirectory, StringComparison.InvariantCultureIgnoreCase ) )
-        {
-            return;
-        }
-
-        if( newPath.Length == 0 )
-        {
-            Valid    = false;
-            BasePath = new DirectoryInfo( "." );
-        }
-        else
-        {
-            var newDir = new DirectoryInfo( newPath );
-            if( !newDir.Exists )
-            {
-                try
-                {
-                    Directory.CreateDirectory( newDir.FullName );
-                    newDir.Refresh();
-                }
-                catch( Exception e )
-                {
-                    PluginLog.Error( $"Could not create specified mod directory {newDir.FullName}:\n{e}" );
-                }
-            }
-
-            BasePath = newDir;
-            Valid    = true;
-            if( Config.ModDirectory != BasePath.FullName )
-            {
-                Config.ModDirectory = BasePath.FullName;
-                Config.Save();
-            }
-        }
-
-        ModsRediscovered?.Invoke();
-    }
-
-    public ModManager()
-    {
-        SetBaseDirectory( Config.ModDirectory, true );
-    }
-
-    private bool SetSortOrderPath( ModData mod, string path )
-    {
-        mod.Move( path );
-        var fixedPath = mod.SortOrder.FullPath;
-        if( fixedPath.Length == 0 || string.Equals( fixedPath, mod.Meta.Name, StringComparison.InvariantCultureIgnoreCase ) )
-        {
-            Config.ModSortOrder.Remove( mod.BasePath.Name );
-            return true;
-        }
-
-        if( path != fixedPath )
-        {
-            Config.ModSortOrder[ mod.BasePath.Name ] = fixedPath;
-            return true;
-        }
-
-        return false;
-    }
-
-    private void SetModStructure( bool removeOldPaths = false )
-    {
-        var changes = false;
-
-        foreach( var (folder, path) in Config.ModSortOrder.ToArray() )
-        {
-            if( path.Length > 0 && _mods.FindFirst( m => m.BasePath.Name == folder, out var mod ) )
-            {
-                changes |= SetSortOrderPath( mod, path );
-            }
-            else if( removeOldPaths )
-            {
-                changes = true;
-                Config.ModSortOrder.Remove( folder );
-            }
-        }
-
-        if( changes )
-        {
-            Config.Save();
-        }
-    }
-
-    public void DiscoverMods()
-    {
-        _mods.Clear();
-        BasePath.Refresh();
-
-        StructuredMods.SubFolders.Clear();
-        StructuredMods.Mods.Clear();
-        if( Valid && BasePath.Exists )
-        {
-            foreach( var modFolder in BasePath.EnumerateDirectories() )
-            {
-                var mod = ModData.LoadMod( StructuredMods, modFolder );
-                if( mod == null )
-                {
-                    continue;
-                }
-
-                _mods.Add( mod );
-            }
-
-            SetModStructure();
-        }
-
-        ModsRediscovered?.Invoke();
-    }
-
-    public void DeleteMod( DirectoryInfo modFolder )
-    {
-        if( Directory.Exists( modFolder.FullName ) )
-        {
-            try
-            {
-                Directory.Delete( modFolder.FullName, true );
-            }
-            catch( Exception e )
-            {
-                PluginLog.Error( $"Could not delete the mod {modFolder.Name}:\n{e}" );
-            }
-        }
-
-        var idx = _mods.FindIndex( m => m.BasePath.Name == modFolder.Name );
-        if( idx >= 0 )
-        {
-            var mod = _mods[ idx ];
-            mod.SortOrder.ParentFolder.RemoveMod( mod );
-            _mods.RemoveAt( idx );
-            ModChange?.Invoke( ModChangeType.Removed, idx, mod );
-        }
-    }
-
-    public int AddMod( DirectoryInfo modFolder )
-    {
-        var mod = ModData.LoadMod( StructuredMods, modFolder );
-        if( mod == null )
-        {
-            return -1;
-        }
-
-        if( Config.ModSortOrder.TryGetValue( mod.BasePath.Name, out var sortOrder ) )
-        {
-            if( SetSortOrderPath( mod, sortOrder ) )
-            {
-                Config.Save();
-            }
-        }
-
-        if( _mods.Any( m => m.BasePath.Name == modFolder.Name ) )
-        {
-            return -1;
-        }
-
-        _mods.Add( mod );
-        ModChange?.Invoke( ModChangeType.Added, _mods.Count - 1, mod );
-
-        return _mods.Count - 1;
-    }
-
-    public bool UpdateMod( int idx, bool reloadMeta = false, bool recomputeMeta = false, bool force = false )
-    {
-        var mod         = Mods[ idx ];
-        var oldName     = mod.Meta.Name;
-        var metaChanges = mod.Meta.RefreshFromFile( mod.MetaFile ) || force;
-        var fileChanges = mod.Resources.RefreshModFiles( mod.BasePath );
-
-        if( !recomputeMeta && !reloadMeta && !metaChanges && fileChanges == 0 )
-        {
-            return false;
-        }
-
-        if( metaChanges || fileChanges.HasFlag( ResourceChange.Files ) )
-        {
-            mod.ComputeChangedItems();
-            if( Config.ModSortOrder.TryGetValue( mod.BasePath.Name, out var sortOrder ) )
-            {
-                mod.Move( sortOrder );
-                var path = mod.SortOrder.FullPath;
-                if( path != sortOrder )
-                {
-                    Config.ModSortOrder[ mod.BasePath.Name ] = path;
-                    Config.Save();
-                }
-            }
-            else
-            {
-                mod.SortOrder = new SortOrder( StructuredMods, mod.Meta.Name );
-            }
-        }
-
-        var nameChange = !string.Equals( oldName, mod.Meta.Name, StringComparison.InvariantCulture );
-
-        recomputeMeta |= fileChanges.HasFlag( ResourceChange.Meta );
-        if( recomputeMeta )
-        {
-            mod.Resources.MetaManipulations.Update( mod.Resources.MetaFiles, mod.BasePath, mod.Meta );
-            mod.Resources.MetaManipulations.SaveToFile( MetaCollection.FileName( mod.BasePath ) );
-        }
-
-        // TODO: more specific mod changes?
-        ModChange?.Invoke( ModChangeType.Changed, idx, mod );
-        return true;
-    }
-
-    public bool UpdateMod( ModData mod, bool reloadMeta = false, bool recomputeMeta = false, bool force = false )
-        => UpdateMod( Mods.IndexOf( mod ), reloadMeta, recomputeMeta, force );
-
-    public static FullPath? ResolvePath( Utf8GamePath gameResourcePath )
-        => Penumbra.CollectionManager.Default.ResolvePath( gameResourcePath );
-}
\ No newline at end of file
diff --git a/Penumbra/Mods/ModManagerEditExtensions.cs b/Penumbra/Mods/ModManagerEditExtensions.cs
index 5083075a..7160d874 100644
--- a/Penumbra/Mods/ModManagerEditExtensions.cs
+++ b/Penumbra/Mods/ModManagerEditExtensions.cs
@@ -12,7 +12,7 @@ namespace Penumbra.Mods;
 // Contains all change functions on a specific mod that also require corresponding changes to collections.
 public static class ModManagerEditExtensions
 {
-    public static bool RenameMod( this ModManager manager, string newName, ModData mod )
+    public static bool RenameMod( this Mod.Mod.Manager manager, string newName, Mod.Mod mod )
     {
         if( newName.Length == 0 || string.Equals( newName, mod.Meta.Name, StringComparison.InvariantCulture ) )
         {
@@ -25,23 +25,23 @@ public static class ModManagerEditExtensions
         return true;
     }
 
-    public static bool ChangeSortOrder( this ModManager manager, ModData mod, string newSortOrder )
+    public static bool ChangeSortOrder( this Mod.Mod.Manager manager, Mod.Mod mod, string newSortOrder )
     {
-        if( string.Equals( mod.SortOrder.FullPath, newSortOrder, StringComparison.InvariantCultureIgnoreCase ) )
+        if( string.Equals( mod.Order.FullPath, newSortOrder, StringComparison.InvariantCultureIgnoreCase ) )
         {
             return false;
         }
 
-        var inRoot = new SortOrder( manager.StructuredMods, mod.Meta.Name );
+        var inRoot = new Mod.Mod.SortOrder( manager.StructuredMods, mod.Meta.Name );
         if( newSortOrder == string.Empty || newSortOrder == inRoot.SortOrderName )
         {
-            mod.SortOrder = inRoot;
+            mod.Order = inRoot;
             manager.Config.ModSortOrder.Remove( mod.BasePath.Name );
         }
         else
         {
             mod.Move( newSortOrder );
-            manager.Config.ModSortOrder[ mod.BasePath.Name ] = mod.SortOrder.FullPath;
+            manager.Config.ModSortOrder[ mod.BasePath.Name ] = mod.Order.FullPath;
         }
 
         manager.Config.Save();
@@ -49,7 +49,7 @@ public static class ModManagerEditExtensions
         return true;
     }
 
-    public static bool RenameModFolder( this ModManager manager, ModData mod, DirectoryInfo newDir, bool move = true )
+    public static bool RenameModFolder( this Mod.Mod.Manager manager, Mod.Mod mod, DirectoryInfo newDir, bool move = true )
     {
         if( move )
         {
@@ -73,7 +73,7 @@ public static class ModManagerEditExtensions
 
         var oldBasePath = mod.BasePath;
         mod.BasePath = newDir;
-        mod.MetaFile = ModData.MetaFileInfo( newDir );
+        mod.MetaFile = Mod.Mod.MetaFileInfo( newDir );
         manager.UpdateMod( mod );
 
         if( manager.Config.ModSortOrder.ContainsKey( oldBasePath.Name ) )
@@ -95,7 +95,7 @@ public static class ModManagerEditExtensions
         return true;
     }
 
-    public static bool ChangeModGroup( this ModManager manager, string oldGroupName, string newGroupName, ModData mod,
+    public static bool ChangeModGroup( this Mod.Mod.Manager manager, string oldGroupName, string newGroupName, Mod.Mod mod,
         SelectType type = SelectType.Single )
     {
         if( newGroupName == oldGroupName || mod.Meta.Groups.ContainsKey( newGroupName ) )
@@ -157,7 +157,7 @@ public static class ModManagerEditExtensions
         return true;
     }
 
-    public static bool RemoveModOption( this ModManager manager, int optionIdx, OptionGroup group, ModData mod )
+    public static bool RemoveModOption( this Mod.Mod.Manager manager, int optionIdx, OptionGroup group, Mod.Mod mod )
     {
         if( optionIdx < 0 || optionIdx >= group.Options.Count )
         {
@@ -202,7 +202,7 @@ public static class ModManagerEditExtensions
                 if( collection.HasCache && settings.Enabled )
                 {
                     collection.CalculateEffectiveFileList( mod.Resources.MetaManipulations.Count > 0,
-                        Penumbra.CollectionManager.Default == collection );
+                        Penumbra.CollectionManager.Default                                       == collection );
                 }
             }
         }
diff --git a/Penumbra/Penumbra.cs b/Penumbra/Penumbra.cs
index 70535479..61a803ea 100644
--- a/Penumbra/Penumbra.cs
+++ b/Penumbra/Penumbra.cs
@@ -16,6 +16,7 @@ using Penumbra.Util;
 using Penumbra.Collections;
 using Penumbra.Interop.Loader;
 using Penumbra.Interop.Resolver;
+using Penumbra.Mod;
 
 namespace Penumbra;
 
@@ -34,8 +35,8 @@ public class Penumbra : IDalamudPlugin
     public static ResidentResourceManager ResidentResources { get; private set; } = null!;
     public static CharacterUtility CharacterUtility { get; private set; } = null!;
 
-    public static ModManager ModManager { get; private set; } = null!;
-    public static CollectionManager2 CollectionManager { get; private set; } = null!;
+    public static Mod.Mod.Manager ModManager { get; private set; } = null!;
+    public static ModCollection.Manager CollectionManager { get; private set; } = null!;
 
     public static ResourceLoader ResourceLoader { get; set; } = null!;
     public ResourceLogger ResourceLogger { get; }
@@ -66,9 +67,9 @@ public class Penumbra : IDalamudPlugin
         CharacterUtility  = new CharacterUtility();
         ResourceLoader    = new ResourceLoader( this );
         ResourceLogger    = new ResourceLogger( ResourceLoader );
-        ModManager        = new ModManager();
+        ModManager        = new Mod.Mod.Manager();
         ModManager.DiscoverMods();
-        CollectionManager = new CollectionManager2( ModManager );
+        CollectionManager = new ModCollection.Manager( ModManager );
         ObjectReloader    = new ObjectReloader();
         PathResolver      = new PathResolver( ResourceLoader );
 
@@ -223,9 +224,9 @@ public class Penumbra : IDalamudPlugin
         type           = type.ToLowerInvariant();
         collectionName = collectionName.ToLowerInvariant();
 
-        var collection = string.Equals( collectionName, ModCollection2.Empty.Name, StringComparison.InvariantCultureIgnoreCase )
-            ? ModCollection2.Empty
-            : CollectionManager[collectionName];
+        var collection = string.Equals( collectionName, ModCollection.Empty.Name, StringComparison.InvariantCultureIgnoreCase )
+            ? ModCollection.Empty
+            : CollectionManager[ collectionName ];
         if( collection == null )
         {
             Dalamud.Chat.Print( $"The collection {collection} does not exist." );
@@ -241,7 +242,7 @@ public class Penumbra : IDalamudPlugin
                     return false;
                 }
 
-                CollectionManager.SetCollection( collection, CollectionType.Default );
+                CollectionManager.SetCollection( collection, ModCollection.Type.Default );
                 Dalamud.Chat.Print( $"Set {collection.Name} as default collection." );
                 SettingsInterface.ResetDefaultCollection();
                 return true;
diff --git a/Penumbra/UI/MenuTabs/TabChangedItems.cs b/Penumbra/UI/MenuTabs/TabChangedItems.cs
index bcd6ff0a..56bddabd 100644
--- a/Penumbra/UI/MenuTabs/TabChangedItems.cs
+++ b/Penumbra/UI/MenuTabs/TabChangedItems.cs
@@ -25,9 +25,7 @@ public partial class SettingsInterface
                 return;
             }
 
-            var modManager = Penumbra.ModManager;
-            var items      = Penumbra.CollectionManager.DefaultCollection.Cache?.ChangedItems ?? new Dictionary< string, object? >();
-            var forced     = Penumbra.CollectionManager.ForcedCollection.Cache?.ChangedItems  ?? new Dictionary< string, object? >();
+            var items = Penumbra.CollectionManager.Default.ChangedItems;
 
             using var raii = ImGuiRaii.DeferredEnd( ImGui.EndTabItem );
 
@@ -45,12 +43,8 @@ public partial class SettingsInterface
             raii.Push( ImGui.EndTable );
 
             var list = items.AsEnumerable();
-            if( forced.Count > 0 )
-            {
-                list = list.Concat( forced ).OrderBy( kvp => kvp.Key );
-            }
 
-            if( _filter.Any() )
+            if( _filter.Length > 0 )
             {
                 list = list.Where( kvp => kvp.Key.ToLowerInvariant().Contains( _filterLower ) );
             }
diff --git a/Penumbra/UI/MenuTabs/TabCollections.cs b/Penumbra/UI/MenuTabs/TabCollections.cs
index 2d94eaef..4775526e 100644
--- a/Penumbra/UI/MenuTabs/TabCollections.cs
+++ b/Penumbra/UI/MenuTabs/TabCollections.cs
@@ -22,9 +22,8 @@ public partial class SettingsInterface
         private readonly Selector                  _selector;
         private          string                    _collectionNames         = null!;
         private          string                    _collectionNamesWithNone = null!;
-        private          ModCollection2[]          _collections             = null!;
+        private          ModCollection[]          _collections             = null!;
         private          int                       _currentCollectionIndex;
-        private          int                       _currentForcedIndex;
         private          int                       _currentDefaultIndex;
         private readonly Dictionary< string, int > _currentCharacterIndices = new();
         private          string                    _newCollectionName       = string.Empty;
@@ -32,14 +31,14 @@ public partial class SettingsInterface
 
         private void UpdateNames()
         {
-            _collections             = Penumbra.CollectionManager.Prepend( ModCollection2.Empty ).ToArray();
+            _collections             = Penumbra.CollectionManager.Prepend( ModCollection.Empty ).ToArray();
             _collectionNames         = string.Join( "\0", _collections.Skip( 1 ).Select( c => c.Name ) ) + '\0';
             _collectionNamesWithNone = "None\0"                                                          + _collectionNames;
             UpdateIndices();
         }
 
 
-        private int GetIndex( ModCollection2 collection )
+        private int GetIndex( ModCollection collection )
         {
             var ret = _collections.IndexOf( c => c.Name == collection.Name );
             if( ret < 0 )
@@ -52,20 +51,17 @@ public partial class SettingsInterface
         }
 
         private void UpdateIndex()
-            => _currentCollectionIndex = GetIndex( Penumbra.CollectionManager.CurrentCollection ) - 1;
-
-        public void UpdateForcedIndex()
-            => _currentForcedIndex = GetIndex( Penumbra.CollectionManager.ForcedCollection );
+            => _currentCollectionIndex = GetIndex( Penumbra.CollectionManager.Current ) - 1;
 
         public void UpdateDefaultIndex()
-            => _currentDefaultIndex = GetIndex( Penumbra.CollectionManager.DefaultCollection );
+            => _currentDefaultIndex = GetIndex( Penumbra.CollectionManager.Default );
 
         private void UpdateCharacterIndices()
         {
             _currentCharacterIndices.Clear();
-            foreach( var kvp in Penumbra.CollectionManager.CharacterCollection )
+            foreach( var (character, collection) in Penumbra.CollectionManager.Characters )
             {
-                _currentCharacterIndices[ kvp.Key ] = GetIndex( kvp.Value );
+                _currentCharacterIndices[ character ] = GetIndex( collection );
             }
         }
 
@@ -73,7 +69,6 @@ public partial class SettingsInterface
         {
             UpdateIndex();
             UpdateDefaultIndex();
-            UpdateForcedIndex();
             UpdateCharacterIndices();
         }
 
@@ -83,24 +78,22 @@ public partial class SettingsInterface
             UpdateNames();
         }
 
-        private void CreateNewCollection( Dictionary< string, ModSettings > settings )
+        private void CreateNewCollection( bool duplicate )
         {
-            if( Penumbra.CollectionManager.AddCollection( _newCollectionName, settings ) )
+            if( Penumbra.CollectionManager.AddCollection( _newCollectionName, duplicate ? Penumbra.CollectionManager.Current : null ) )
             {
                 UpdateNames();
-                SetCurrentCollection( Penumbra.CollectionManager.ByName( _newCollectionName )!, true );
+                SetCurrentCollection( Penumbra.CollectionManager[ _newCollectionName ]!, true );
             }
 
             _newCollectionName = string.Empty;
         }
 
-        private void DrawCleanCollectionButton()
+        private static void DrawCleanCollectionButton()
         {
             if( ImGui.Button( "Clean Settings" ) )
             {
-                var changes = ModFunctions.CleanUpCollection( Penumbra.CollectionManager.CurrentCollection.Settings,
-                    Penumbra.ModManager.BasePath.EnumerateDirectories() );
-                Penumbra.CollectionManager.CurrentCollection.UpdateSettings( changes );
+                Penumbra.CollectionManager.Current.CleanUnavailableSettings();
             }
 
             ImGuiCustom.HoverTooltip(
@@ -120,14 +113,14 @@ public partial class SettingsInterface
 
             if( ImGui.Button( "Create New Empty Collection" ) && _newCollectionName.Length > 0 )
             {
-                CreateNewCollection( new Dictionary< string, ModSettings >() );
+                CreateNewCollection( false );
             }
 
             var hover = ImGui.IsItemHovered();
             ImGui.SameLine();
             if( ImGui.Button( "Duplicate Current Collection" ) && _newCollectionName.Length > 0 )
             {
-                CreateNewCollection( Penumbra.CollectionManager.CurrentCollection.Settings );
+                CreateNewCollection( true );
             }
 
             hover |= ImGui.IsItemHovered();
@@ -138,13 +131,12 @@ public partial class SettingsInterface
                 ImGui.SetTooltip( "Please enter a name before creating a collection." );
             }
 
-            var deleteCondition = Penumbra.CollectionManager.Collections.Count > 1
-             && Penumbra.CollectionManager.CurrentCollection.Name              != ModCollection.DefaultCollection;
+            var deleteCondition = Penumbra.CollectionManager.Current.Name != ModCollection.DefaultCollection;
             ImGui.SameLine();
             if( ImGuiCustom.DisableButton( "Delete Current Collection", deleteCondition ) )
             {
-                Penumbra.CollectionManager.RemoveCollection( Penumbra.CollectionManager.CurrentCollection.Name );
-                SetCurrentCollection( Penumbra.CollectionManager.CurrentCollection, true );
+                Penumbra.CollectionManager.RemoveCollection( Penumbra.CollectionManager.Current );
+                SetCurrentCollection( Penumbra.CollectionManager.Current, true );
                 UpdateNames();
             }
 
@@ -167,7 +159,7 @@ public partial class SettingsInterface
                 return;
             }
 
-            Penumbra.CollectionManager.SetCollection( _collections[ idx + 1 ], CollectionType.Current );
+            Penumbra.CollectionManager.SetCollection( _collections[ idx + 1 ], ModCollection.Type.Current );
             _currentCollectionIndex = idx;
             _selector.Cache.TriggerListReset();
             if( _selector.Mod != null )
@@ -176,7 +168,7 @@ public partial class SettingsInterface
             }
         }
 
-        public void SetCurrentCollection( ModCollection2 collection, bool force = false )
+        public void SetCurrentCollection( ModCollection collection, bool force = false )
         {
             var idx = Array.IndexOf( _collections, collection ) - 1;
             if( idx >= 0 )
@@ -206,7 +198,7 @@ public partial class SettingsInterface
             ImGui.SetNextItemWidth( SettingsMenu.InputTextWidth );
             if( ImGui.Combo( "##Default Collection", ref index, _collectionNamesWithNone ) && index != _currentDefaultIndex )
             {
-                Penumbra.CollectionManager.SetCollection( _collections[ index ], CollectionType.Default );
+                Penumbra.CollectionManager.SetCollection( _collections[ index ], ModCollection.Type.Default );
                 _currentDefaultIndex = index;
             }
 
@@ -219,34 +211,6 @@ public partial class SettingsInterface
             ImGui.Text( "Default Collection" );
         }
 
-        private void DrawForcedCollectionSelector()
-        {
-            var index = _currentForcedIndex;
-            ImGui.SetNextItemWidth( SettingsMenu.InputTextWidth );
-            using var style = ImGuiRaii.PushStyle( ImGuiStyleVar.Alpha, 0.5f, Penumbra.CollectionManager.CharacterCollection.Count == 0 );
-            if( ImGui.Combo( "##Forced Collection", ref index, _collectionNamesWithNone )
-            && index                                                != _currentForcedIndex
-            && Penumbra.CollectionManager.CharacterCollection.Count > 0 )
-            {
-                Penumbra.CollectionManager.SetCollection( _collections[ index ], CollectionType.Forced );
-                _currentForcedIndex = index;
-            }
-
-            style.Pop();
-            if( Penumbra.CollectionManager.CharacterCollection.Count == 0 && ImGui.IsItemHovered() )
-            {
-                ImGui.SetTooltip(
-                    "Forced Collections only provide value if you have at least one Character Collection. There is no need to set one until then." );
-            }
-
-            ImGui.SameLine();
-            ImGuiComponents.HelpMarker(
-                "Mods in the forced collection are always loaded if not overwritten by anything in the current or character-based collection.\n"
-              + "Please avoid mixing meta-manipulating mods in Forced and other collections, as this will probably not work correctly." );
-            ImGui.SameLine();
-            ImGui.Text( "Forced Collection" );
-        }
-
         private void DrawNewCharacterCollection()
         {
             ImGui.SetNextItemWidth( SettingsMenu.InputTextWidth );
@@ -339,16 +303,15 @@ public partial class SettingsInterface
             }
 
             DrawDefaultCollectionSelector();
-            DrawForcedCollectionSelector();
 
-            foreach( var name in Penumbra.CollectionManager.CharacterCollection.Keys.ToArray() )
+            foreach( var (name, collection) in Penumbra.CollectionManager.Characters.ToArray() )
             {
                 var idx = _currentCharacterIndices[ name ];
                 var tmp = idx;
                 ImGui.SetNextItemWidth( SettingsMenu.InputTextWidth );
                 if( ImGui.Combo( $"##{name}collection", ref tmp, _collectionNamesWithNone ) && idx != tmp )
                 {
-                    Penumbra.CollectionManager.SetCollection( _collections[ tmp ], CollectionType.Character, name );
+                    Penumbra.CollectionManager.SetCollection( _collections[ tmp ], ModCollection.Type.Character, name );
                     _currentCharacterIndices[ name ] = tmp;
                 }
 
diff --git a/Penumbra/UI/MenuTabs/TabDebug.cs b/Penumbra/UI/MenuTabs/TabDebug.cs
index 756d69d2..bfa7d1b8 100644
--- a/Penumbra/UI/MenuTabs/TabDebug.cs
+++ b/Penumbra/UI/MenuTabs/TabDebug.cs
@@ -37,12 +37,10 @@ public partial class SettingsInterface
         using var raii = ImGuiRaii.DeferredEnd( ImGui.EndTable );
 
         var manager = Penumbra.ModManager;
-        PrintValue( "Current Collection", Penumbra.CollectionManager.CurrentCollection.Name );
-        PrintValue( "    has Cache", ( Penumbra.CollectionManager.CurrentCollection.Cache != null ).ToString() );
-        PrintValue( "Default Collection", Penumbra.CollectionManager.DefaultCollection.Name );
-        PrintValue( "    has Cache", ( Penumbra.CollectionManager.DefaultCollection.Cache != null ).ToString() );
-        PrintValue( "Forced Collection", Penumbra.CollectionManager.ForcedCollection.Name );
-        PrintValue( "    has Cache", ( Penumbra.CollectionManager.ForcedCollection.Cache != null ).ToString() );
+        PrintValue( "Current Collection", Penumbra.CollectionManager.Current.Name );
+        PrintValue( "    has Cache", Penumbra.CollectionManager.Current.HasCache.ToString() );
+        PrintValue( "Default Collection", Penumbra.CollectionManager.Default.Name );
+        PrintValue( "    has Cache", Penumbra.CollectionManager.Default.HasCache.ToString() );
         PrintValue( "Mod Manager BasePath", manager.BasePath.Name );
         PrintValue( "Mod Manager BasePath-Full", manager.BasePath.FullName );
         PrintValue( "Mod Manager BasePath IsRooted", Path.IsPathRooted( Penumbra.Config.ModDirectory ).ToString() );
@@ -111,15 +109,15 @@ public partial class SettingsInterface
             return;
         }
 
-        var cache = Penumbra.CollectionManager.CurrentCollection.Cache;
-        if( cache == null || !ImGui.BeginTable( "##MissingFilesDebugList", 1, ImGuiTableFlags.RowBg, -Vector2.UnitX ) )
+        if( !Penumbra.CollectionManager.Current.HasCache
+        || !ImGui.BeginTable( "##MissingFilesDebugList", 1, ImGuiTableFlags.RowBg, -Vector2.UnitX ) )
         {
             return;
         }
 
         using var raii = ImGuiRaii.DeferredEnd( ImGui.EndTable );
 
-        foreach( var file in cache.MissingFiles )
+        foreach( var file in Penumbra.CollectionManager.Current.MissingFiles )
         {
             ImGui.TableNextRow();
             ImGui.TableNextColumn();
diff --git a/Penumbra/UI/MenuTabs/TabEffective.cs b/Penumbra/UI/MenuTabs/TabEffective.cs
index cbf17b9b..04c0dbd1 100644
--- a/Penumbra/UI/MenuTabs/TabEffective.cs
+++ b/Penumbra/UI/MenuTabs/TabEffective.cs
@@ -100,24 +100,66 @@ public partial class SettingsInterface
             return !_filePathFilter.Any() || kvp.Item3.Contains( _filePathFilterLower );
         }
 
-        private void DrawFilteredRows( ModCollection2 active )
+        private void DrawFilteredRows( ModCollection active )
         {
-            void DrawFileLines( ModCollection2.Cache cache )
+            foreach( var (gp, fp) in active.ResolvedFiles.Where( CheckFilters ) )
             {
-                foreach( var (gp, fp) in cache.ResolvedFiles.Where( CheckFilters ) )
-                {
-                    DrawLine( gp, fp );
-                }
-
-                //foreach( var (mp, mod, _) in cache.MetaManipulations.Manipulations
-                //           .Select( p => ( p.Item1.IdentifierString(), p.Item2.Data.Meta.Name, p.Item2.Data.Meta.LowerName ) )
-                //           .Where( CheckFilters ) )
-                //{
-                //    DrawLine( mp, mod );
-                //}
+                DrawLine( gp, fp );
             }
 
-            DrawFileLines( active );
+            var cache = active.MetaCache;
+            if( cache == null )
+            {
+                return;
+            }
+
+            foreach( var (mp, mod, _) in cache.Cmp.Manipulations
+                       .Select( p => ( p.Key.ToString(), Penumbra.ModManager.Mods[ p.Value ].Meta.Name,
+                            Penumbra.ModManager.Mods[ p.Value ].Meta.LowerName ) )
+                       .Where( CheckFilters ) )
+            {
+                DrawLine( mp, mod );
+            }
+
+            foreach( var (mp, mod, _) in cache.Eqp.Manipulations
+                       .Select( p => ( p.Key.ToString(), Penumbra.ModManager.Mods[ p.Value ].Meta.Name,
+                            Penumbra.ModManager.Mods[ p.Value ].Meta.LowerName ) )
+                       .Where( CheckFilters ) )
+            {
+                DrawLine( mp, mod );
+            }
+
+            foreach( var (mp, mod, _) in cache.Eqdp.Manipulations
+                       .Select( p => ( p.Key.ToString(), Penumbra.ModManager.Mods[ p.Value ].Meta.Name,
+                            Penumbra.ModManager.Mods[ p.Value ].Meta.LowerName ) )
+                       .Where( CheckFilters ) )
+            {
+                DrawLine( mp, mod );
+            }
+
+            foreach( var (mp, mod, _) in cache.Gmp.Manipulations
+                       .Select( p => ( p.Key.ToString(), Penumbra.ModManager.Mods[ p.Value ].Meta.Name,
+                            Penumbra.ModManager.Mods[ p.Value ].Meta.LowerName ) )
+                       .Where( CheckFilters ) )
+            {
+                DrawLine( mp, mod );
+            }
+
+            foreach( var (mp, mod, _) in cache.Est.Manipulations
+                       .Select( p => ( p.Key.ToString(), Penumbra.ModManager.Mods[ p.Value ].Meta.Name,
+                            Penumbra.ModManager.Mods[ p.Value ].Meta.LowerName ) )
+                       .Where( CheckFilters ) )
+            {
+                DrawLine( mp, mod );
+            }
+
+            foreach( var (mp, mod, _) in cache.Imc.Manipulations
+                       .Select( p => ( p.Key.ToString(), Penumbra.ModManager.Mods[ p.Value ].Meta.Name,
+                            Penumbra.ModManager.Mods[ p.Value ].Meta.LowerName ) )
+                       .Where( CheckFilters ) )
+            {
+                DrawLine( mp, mod );
+            }
         }
 
         public void Draw()
@@ -133,17 +175,12 @@ public partial class SettingsInterface
 
             const ImGuiTableFlags flags = ImGuiTableFlags.RowBg | ImGuiTableFlags.ScrollX;
 
-            var modManager        = Penumbra.ModManager;
-            var defaultCollection = Penumbra.CollectionManager.DefaultCollection.Cache;
-            var forcedCollection  = Penumbra.CollectionManager.ForcedCollection.Cache;
+            var resolved      = Penumbra.CollectionManager.Default.ResolvedFiles;
+            var meta          = Penumbra.CollectionManager.Default.MetaCache;
+            var metaCount     = meta?.Count ?? 0;
+            var resolvedCount = resolved.Count;
 
-            var (defaultResolved, defaultMeta) = defaultCollection != null
-                ? ( defaultCollection.ResolvedFiles.Count, defaultCollection.MetaManipulations.Count )
-                : ( 0, 0 );
-            var (forcedResolved, forcedMeta) = forcedCollection != null
-                ? ( forcedCollection.ResolvedFiles.Count, forcedCollection.MetaManipulations.Count )
-                : ( 0, 0 );
-            var totalLines = defaultResolved + forcedResolved + defaultMeta + forcedMeta;
+            var totalLines = resolvedCount + metaCount;
             if( totalLines == 0 )
             {
                 return;
@@ -159,7 +196,7 @@ public partial class SettingsInterface
 
             if( _filePathFilter.Length > 0 || _gamePathFilter.Length > 0 )
             {
-                DrawFilteredRows( defaultCollection, forcedCollection );
+                DrawFilteredRows( Penumbra.CollectionManager.Default );
             }
             else
             {
@@ -178,29 +215,17 @@ public partial class SettingsInterface
                     {
                         var row = actualRow;
                         ImGui.TableNextRow();
-                        if( row < defaultResolved )
+                        if( row < resolvedCount )
                         {
-                            var (gamePath, file) = defaultCollection!.ResolvedFiles.ElementAt( row );
+                            var (gamePath, file) = resolved.ElementAt( row );
                             DrawLine( gamePath, file );
                         }
-                        else if( ( row -= defaultResolved ) < defaultMeta )
+                        else if( ( row -= resolved.Count ) < metaCount )
                         {
                             // TODO
                             //var (manip, mod) = activeCollection!.MetaManipulations.Manipulations.ElementAt( row );
                             DrawLine( 0.ToString(), 0.ToString() );
                         }
-                        else if( ( row -= defaultMeta ) < forcedResolved )
-                        {
-                            var (gamePath, file) = forcedCollection!.ResolvedFiles.ElementAt( row );
-                            DrawLine( gamePath, file );
-                        }
-                        else
-                        {
-                            // TODO
-                            row -= forcedResolved;
-                            //var (manip, mod) =  forcedCollection!.MetaManipulations.Manipulations.ElementAt( row );
-                            DrawLine( 0.ToString(), 0.ToString() );
-                        }
                     }
                 }
             }
diff --git a/Penumbra/UI/MenuTabs/TabInstalled/ModListCache.cs b/Penumbra/UI/MenuTabs/TabInstalled/ModListCache.cs
index fd0a0951..b797902e 100644
--- a/Penumbra/UI/MenuTabs/TabInstalled/ModListCache.cs
+++ b/Penumbra/UI/MenuTabs/TabInstalled/ModListCache.cs
@@ -2,324 +2,328 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using Dalamud.Logging;
+using Penumbra.Mod;
 using Penumbra.Mods;
+using Penumbra.Util;
 
-namespace Penumbra.UI
+namespace Penumbra.UI;
+
+public class ModListCache : IDisposable
 {
-    public class ModListCache : IDisposable
+    public const uint NewModColor             = 0xFF66DD66u;
+    public const uint DisabledModColor        = 0xFF666666u;
+    public const uint ConflictingModColor     = 0xFFAAAAFFu;
+    public const uint HandledConflictModColor = 0xFF88DDDDu;
+
+    private readonly Mod.Mod.Manager _manager;
+
+    private readonly List< FullMod >                                       _modsInOrder    = new();
+    private readonly List< (bool visible, uint color) >                    _visibleMods    = new();
+    private readonly Dictionary< ModFolder, (bool visible, bool enabled) > _visibleFolders = new();
+    private readonly IReadOnlySet< string >                                _newMods;
+
+    private string    _modFilter        = string.Empty;
+    private string    _modFilterChanges = string.Empty;
+    private string    _modFilterAuthor  = string.Empty;
+    private ModFilter _stateFilter      = ModFilterExtensions.UnfilteredStateMods;
+    private bool      _listResetNecessary;
+    private bool      _filterResetNecessary;
+
+
+    public ModFilter StateFilter
     {
-        public const uint NewModColor             = 0xFF66DD66u;
-        public const uint DisabledModColor        = 0xFF666666u;
-        public const uint ConflictingModColor     = 0xFFAAAAFFu;
-        public const uint HandledConflictModColor = 0xFF88DDDDu;
-
-        private readonly ModManager _manager;
-
-        private readonly List< Mod.Mod >                                       _modsInOrder    = new();
-        private readonly List< (bool visible, uint color) >                    _visibleMods    = new();
-        private readonly Dictionary< ModFolder, (bool visible, bool enabled) > _visibleFolders = new();
-        private readonly IReadOnlySet< string >                                _newMods;
-
-        private string    _modFilter        = string.Empty;
-        private string    _modFilterChanges = string.Empty;
-        private string    _modFilterAuthor  = string.Empty;
-        private ModFilter _stateFilter      = ModFilterExtensions.UnfilteredStateMods;
-        private bool      _listResetNecessary;
-        private bool      _filterResetNecessary;
-
-
-        public ModFilter StateFilter
+        get => _stateFilter;
+        set
         {
-            get => _stateFilter;
-            set
+            var diff = _stateFilter != value;
+            _stateFilter = value;
+            if( diff )
             {
-                var diff = _stateFilter != value;
-                _stateFilter = value;
-                if( diff )
-                {
-                    TriggerFilterReset();
-                }
+                TriggerFilterReset();
             }
         }
+    }
 
-        public ModListCache( ModManager manager, IReadOnlySet< string > newMods )
+    public ModListCache( Mod.Mod.Manager manager, IReadOnlySet< string > newMods )
+    {
+        _manager = manager;
+        _newMods = newMods;
+        ResetModList();
+        ModFileSystem.ModFileSystemChanged += TriggerListReset;
+    }
+
+    public void Dispose()
+    {
+        ModFileSystem.ModFileSystemChanged -= TriggerListReset;
+    }
+
+    public int Count
+        => _modsInOrder.Count;
+
+
+    public bool Update()
+    {
+        if( _listResetNecessary )
         {
-            _manager = manager;
-            _newMods = newMods;
             ResetModList();
-            ModFileSystem.ModFileSystemChanged += TriggerListReset;
-        }
-
-        public void Dispose()
-        {
-            ModFileSystem.ModFileSystemChanged -= TriggerListReset;
-        }
-
-        public int Count
-            => _modsInOrder.Count;
-
-
-        public bool Update()
-        {
-            if( _listResetNecessary )
-            {
-                ResetModList();
-                return true;
-            }
-
-            if( _filterResetNecessary )
-            {
-                ResetFilters();
-                return true;
-            }
-
-            return false;
-        }
-
-        public void TriggerListReset()
-            => _listResetNecessary = true;
-
-        public void TriggerFilterReset()
-            => _filterResetNecessary = true;
-
-        public void RemoveMod( Mod.Mod mod )
-        {
-            var idx = _modsInOrder.IndexOf( mod );
-            if( idx >= 0 )
-            {
-                _modsInOrder.RemoveAt( idx );
-                _visibleMods.RemoveAt( idx );
-                UpdateFolders();
-            }
-        }
-
-        private void SetFolderAndParentsVisible( ModFolder? folder )
-        {
-            while( folder != null && ( !_visibleFolders.TryGetValue( folder, out var state ) || !state.visible ) )
-            {
-                _visibleFolders[ folder ] = ( true, true );
-                folder                    = folder.Parent;
-            }
-        }
-
-        private void UpdateFolders()
-        {
-            _visibleFolders.Clear();
-
-            for( var i = 0; i < _modsInOrder.Count; ++i )
-            {
-                if( _visibleMods[ i ].visible )
-                {
-                    SetFolderAndParentsVisible( _modsInOrder[ i ].Data.SortOrder.ParentFolder );
-                }
-            }
-        }
-
-        public void SetTextFilter( string filter )
-        {
-            var lower = filter.ToLowerInvariant();
-            if( lower.StartsWith( "c:" ) )
-            {
-                _modFilterChanges = lower[ 2.. ];
-                _modFilter        = string.Empty;
-                _modFilterAuthor  = string.Empty;
-            }
-            else if( lower.StartsWith( "a:" ) )
-            {
-                _modFilterAuthor  = lower[ 2.. ];
-                _modFilter        = string.Empty;
-                _modFilterChanges = string.Empty;
-            }
-            else
-            {
-                _modFilter        = lower;
-                _modFilterAuthor  = string.Empty;
-                _modFilterChanges = string.Empty;
-            }
-
-            ResetFilters();
-        }
-
-        private void ResetModList()
-        {
-            _modsInOrder.Clear();
-            _visibleMods.Clear();
-            _visibleFolders.Clear();
-
-            PluginLog.Debug( "Resetting mod selector list..." );
-            if( _modsInOrder.Count == 0 )
-            {
-                foreach( var modData in _manager.StructuredMods.AllMods( _manager.Config.SortFoldersFirst ) )
-                {
-                    var mod = Penumbra.CollectionManager.Current.GetMod( modData );
-                    _modsInOrder.Add( mod );
-                    _visibleMods.Add( CheckFilters( mod ) );
-                }
-            }
-
-            _listResetNecessary   = false;
-            _filterResetNecessary = false;
-        }
-
-        private void ResetFilters()
-        {
-            _visibleMods.Clear();
-            _visibleFolders.Clear();
-            PluginLog.Debug( "Resetting mod selector filters..." );
-            foreach( var mod in _modsInOrder )
-            {
-                _visibleMods.Add( CheckFilters( mod ) );
-            }
-
-            _filterResetNecessary = false;
-        }
-
-        public (Mod.Mod? mod, int idx) GetModByName( string name )
-        {
-            for( var i = 0; i < Count; ++i )
-            {
-                if( _modsInOrder[ i ].Data.Meta.Name == name )
-                {
-                    return ( _modsInOrder[ i ], i );
-                }
-            }
-
-            return ( null, 0 );
-        }
-
-        public (Mod.Mod? mod, int idx) GetModByBasePath( string basePath )
-        {
-            for( var i = 0; i < Count; ++i )
-            {
-                if( _modsInOrder[ i ].Data.BasePath.Name == basePath )
-                {
-                    return ( _modsInOrder[ i ], i );
-                }
-            }
-
-            return ( null, 0 );
-        }
-
-        public (bool visible, bool enabled) GetFolder( ModFolder folder )
-            => _visibleFolders.TryGetValue( folder, out var ret ) ? ret : ( false, false );
-
-        public (Mod.Mod?, bool visible, uint color) GetMod( int idx )
-            => idx >= 0 && idx < _modsInOrder.Count
-                ? ( _modsInOrder[ idx ], _visibleMods[ idx ].visible, _visibleMods[ idx ].color )
-                : ( null, false, 0 );
-
-        private bool CheckFlags( int count, ModFilter hasNoFlag, ModFilter hasFlag )
-        {
-            if( count == 0 )
-            {
-                if( StateFilter.HasFlag( hasNoFlag ) )
-                {
-                    return false;
-                }
-            }
-            else if( StateFilter.HasFlag( hasFlag ) )
-            {
-                return false;
-            }
-
             return true;
         }
 
-        private (bool, uint) CheckFilters( Mod.Mod mod )
+        if( _filterResetNecessary )
         {
-            var ret = ( false, 0u );
+            ResetFilters();
+            return true;
+        }
 
-            if( _modFilter.Any() && !mod.Data.Meta.LowerName.Contains( _modFilter ) )
+        return false;
+    }
+
+    public void TriggerListReset()
+        => _listResetNecessary = true;
+
+    public void TriggerFilterReset()
+        => _filterResetNecessary = true;
+
+    public void RemoveMod( FullMod mod )
+    {
+        var idx = _modsInOrder.IndexOf( mod );
+        if( idx >= 0 )
+        {
+            _modsInOrder.RemoveAt( idx );
+            _visibleMods.RemoveAt( idx );
+            UpdateFolders();
+        }
+    }
+
+    private void SetFolderAndParentsVisible( ModFolder? folder )
+    {
+        while( folder != null && ( !_visibleFolders.TryGetValue( folder, out var state ) || !state.visible ) )
+        {
+            _visibleFolders[ folder ] = ( true, true );
+            folder                    = folder.Parent;
+        }
+    }
+
+    private void UpdateFolders()
+    {
+        _visibleFolders.Clear();
+
+        for( var i = 0; i < _modsInOrder.Count; ++i )
+        {
+            if( _visibleMods[ i ].visible )
+            {
+                SetFolderAndParentsVisible( _modsInOrder[ i ].Data.Order.ParentFolder );
+            }
+        }
+    }
+
+    public void SetTextFilter( string filter )
+    {
+        var lower = filter.ToLowerInvariant();
+        if( lower.StartsWith( "c:" ) )
+        {
+            _modFilterChanges = lower[ 2.. ];
+            _modFilter        = string.Empty;
+            _modFilterAuthor  = string.Empty;
+        }
+        else if( lower.StartsWith( "a:" ) )
+        {
+            _modFilterAuthor  = lower[ 2.. ];
+            _modFilter        = string.Empty;
+            _modFilterChanges = string.Empty;
+        }
+        else
+        {
+            _modFilter        = lower;
+            _modFilterAuthor  = string.Empty;
+            _modFilterChanges = string.Empty;
+        }
+
+        ResetFilters();
+    }
+
+    private void ResetModList()
+    {
+        _modsInOrder.Clear();
+        _visibleMods.Clear();
+        _visibleFolders.Clear();
+
+        PluginLog.Debug( "Resetting mod selector list..." );
+        if( _modsInOrder.Count == 0 )
+        {
+            foreach( var modData in _manager.StructuredMods.AllMods( _manager.Config.SortFoldersFirst ) )
+            {
+                var idx = Penumbra.ModManager.Mods.IndexOf( modData );
+                var mod = new FullMod( Penumbra.CollectionManager.Current[ idx ].Settings ?? ModSettings.DefaultSettings( modData.Meta ),
+                    modData );
+                _modsInOrder.Add( mod );
+                _visibleMods.Add( CheckFilters( mod ) );
+            }
+        }
+
+        _listResetNecessary   = false;
+        _filterResetNecessary = false;
+    }
+
+    private void ResetFilters()
+    {
+        _visibleMods.Clear();
+        _visibleFolders.Clear();
+        PluginLog.Debug( "Resetting mod selector filters..." );
+        foreach( var mod in _modsInOrder )
+        {
+            _visibleMods.Add( CheckFilters( mod ) );
+        }
+
+        _filterResetNecessary = false;
+    }
+
+    public (FullMod? mod, int idx) GetModByName( string name )
+    {
+        for( var i = 0; i < Count; ++i )
+        {
+            if( _modsInOrder[ i ].Data.Meta.Name == name )
+            {
+                return ( _modsInOrder[ i ], i );
+            }
+        }
+
+        return ( null, 0 );
+    }
+
+    public (FullMod? mod, int idx) GetModByBasePath( string basePath )
+    {
+        for( var i = 0; i < Count; ++i )
+        {
+            if( _modsInOrder[ i ].Data.BasePath.Name == basePath )
+            {
+                return ( _modsInOrder[ i ], i );
+            }
+        }
+
+        return ( null, 0 );
+    }
+
+    public (bool visible, bool enabled) GetFolder( ModFolder folder )
+        => _visibleFolders.TryGetValue( folder, out var ret ) ? ret : ( false, false );
+
+    public (FullMod?, bool visible, uint color) GetMod( int idx )
+        => idx >= 0 && idx < _modsInOrder.Count
+            ? ( _modsInOrder[ idx ], _visibleMods[ idx ].visible, _visibleMods[ idx ].color )
+            : ( null, false, 0 );
+
+    private bool CheckFlags( int count, ModFilter hasNoFlag, ModFilter hasFlag )
+    {
+        if( count == 0 )
+        {
+            if( StateFilter.HasFlag( hasNoFlag ) )
+            {
+                return false;
+            }
+        }
+        else if( StateFilter.HasFlag( hasFlag ) )
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    private (bool, uint) CheckFilters( FullMod mod )
+    {
+        var ret = ( false, 0u );
+
+        if( _modFilter.Length > 0 && !mod.Data.Meta.LowerName.Contains( _modFilter ) )
+        {
+            return ret;
+        }
+
+        if( _modFilterAuthor.Length > 0 && !mod.Data.Meta.LowerAuthor.Contains( _modFilterAuthor ) )
+        {
+            return ret;
+        }
+
+        if( _modFilterChanges.Length > 0 && !mod.Data.LowerChangedItemsString.Contains( _modFilterChanges ) )
+        {
+            return ret;
+        }
+
+        if( CheckFlags( mod.Data.Resources.ModFiles.Count, ModFilter.HasNoFiles, ModFilter.HasFiles ) )
+        {
+            return ret;
+        }
+
+        if( CheckFlags( mod.Data.Meta.FileSwaps.Count, ModFilter.HasNoFileSwaps, ModFilter.HasFileSwaps ) )
+        {
+            return ret;
+        }
+
+        if( CheckFlags( mod.Data.Resources.MetaManipulations.Count, ModFilter.HasNoMetaManipulations,
+               ModFilter.HasMetaManipulations ) )
+        {
+            return ret;
+        }
+
+        if( CheckFlags( mod.Data.Meta.HasGroupsWithConfig ? 1 : 0, ModFilter.HasNoConfig, ModFilter.HasConfig ) )
+        {
+            return ret;
+        }
+
+        var isNew = _newMods.Contains( mod.Data.BasePath.Name );
+        if( CheckFlags( isNew ? 1 : 0, ModFilter.IsNew, ModFilter.NotNew ) )
+        {
+            return ret;
+        }
+
+        if( !mod.Settings.Enabled )
+        {
+            if( !StateFilter.HasFlag( ModFilter.Disabled ) || !StateFilter.HasFlag( ModFilter.NoConflict ) )
             {
                 return ret;
             }
 
-            if( _modFilterAuthor.Any() && !mod.Data.Meta.LowerAuthor.Contains( _modFilterAuthor ) )
-            {
-                return ret;
-            }
+            ret.Item2 = ret.Item2 == 0 ? DisabledModColor : ret.Item2;
+        }
 
-            if( _modFilterChanges.Any() && !mod.Data.LowerChangedItemsString.Contains( _modFilterChanges ) )
-            {
-                return ret;
-            }
+        if( mod.Settings.Enabled && !StateFilter.HasFlag( ModFilter.Enabled ) )
+        {
+            return ret;
+        }
 
-            if( CheckFlags( mod.Data.Resources.ModFiles.Count, ModFilter.HasNoFiles, ModFilter.HasFiles ) )
+        var conflicts = Penumbra.CollectionManager.Current.ModConflicts( mod.Data.Index ).ToList();
+        if( conflicts.Count > 0 )
+        {
+            if( conflicts.Any( c => !c.Solved ) )
             {
-                return ret;
-            }
-
-            if( CheckFlags( mod.Data.Meta.FileSwaps.Count, ModFilter.HasNoFileSwaps, ModFilter.HasFileSwaps ) )
-            {
-                return ret;
-            }
-
-            if( CheckFlags( mod.Data.Resources.MetaManipulations.Count, ModFilter.HasNoMetaManipulations,
-                ModFilter.HasMetaManipulations ) )
-            {
-                return ret;
-            }
-
-            if( CheckFlags( mod.Data.Meta.HasGroupsWithConfig ? 1 : 0, ModFilter.HasNoConfig, ModFilter.HasConfig ) )
-            {
-                return ret;
-            }
-
-            var isNew = _newMods.Contains( mod.Data.BasePath.Name );
-            if( CheckFlags( isNew ? 1 : 0, ModFilter.IsNew, ModFilter.NotNew ) )
-            {
-                return ret;
-            }
-
-            if( !mod.Settings.Enabled )
-            {
-                if( !StateFilter.HasFlag( ModFilter.Disabled ) || !StateFilter.HasFlag( ModFilter.NoConflict ) )
+                if( !StateFilter.HasFlag( ModFilter.UnsolvedConflict ) )
                 {
                     return ret;
                 }
 
-                ret.Item2 = ret.Item2 == 0 ? DisabledModColor : ret.Item2;
+                ret.Item2 = ret.Item2 == 0 ? ConflictingModColor : ret.Item2;
             }
-
-            if( mod.Settings.Enabled && !StateFilter.HasFlag( ModFilter.Enabled ) )
+            else
             {
-                return ret;
-            }
-
-            if( mod.Cache.Conflicts.Any() )
-            {
-                if( mod.Cache.Conflicts.Keys.Any( m => m.Settings.Priority == mod.Settings.Priority ) )
+                if( !StateFilter.HasFlag( ModFilter.SolvedConflict ) )
                 {
-                    if( !StateFilter.HasFlag( ModFilter.UnsolvedConflict ) )
-                    {
-                        return ret;
-                    }
-
-                    ret.Item2 = ret.Item2 == 0 ? ConflictingModColor : ret.Item2;
+                    return ret;
                 }
-                else
-                {
-                    if( !StateFilter.HasFlag( ModFilter.SolvedConflict ) )
-                    {
-                        return ret;
-                    }
 
-                    ret.Item2 = ret.Item2 == 0 ? HandledConflictModColor : ret.Item2;
-                }
+                ret.Item2 = ret.Item2 == 0 ? HandledConflictModColor : ret.Item2;
             }
-            else if( !StateFilter.HasFlag( ModFilter.NoConflict ) )
-            {
-                return ret;
-            }
-
-            ret.Item1 = true;
-            if( isNew )
-            {
-                ret.Item2 = NewModColor;
-            }
-
-            SetFolderAndParentsVisible( mod.Data.SortOrder.ParentFolder );
+        }
+        else if( !StateFilter.HasFlag( ModFilter.NoConflict ) )
+        {
             return ret;
         }
+
+        ret.Item1 = true;
+        if( isNew )
+        {
+            ret.Item2 = NewModColor;
+        }
+
+        SetFolderAndParentsVisible( mod.Data.Order.ParentFolder );
+        return ret;
     }
 }
\ No newline at end of file
diff --git a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledDetails.cs b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledDetails.cs
index 3843fdb6..d3444394 100644
--- a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledDetails.cs
+++ b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledDetails.cs
@@ -9,6 +9,7 @@ using Penumbra.GameData.ByteString;
 using Penumbra.GameData.Enums;
 using Penumbra.GameData.Util;
 using Penumbra.Meta;
+using Penumbra.Meta.Manipulations;
 using Penumbra.Mod;
 using Penumbra.Mods;
 using Penumbra.UI.Custom;
@@ -119,17 +120,12 @@ public partial class SettingsInterface
         }
 
         // This is only drawn when we have a mod selected, so we can forgive nulls.
-        private Mod.Mod Mod
+        private FullMod Mod
             => _selector.Mod!;
 
         private ModMeta Meta
             => Mod.Data.Meta;
 
-        private void Save()
-        {
-            Penumbra.CollectionManager.CurrentCollection.Save();
-        }
-
         private void DrawAboutTab()
         {
             if( !_editMode && Meta.Description.Length == 0 )
@@ -189,7 +185,8 @@ public partial class SettingsInterface
 
         private void DrawConflictTab()
         {
-            if( !Mod.Cache.Conflicts.Any() || !ImGui.BeginTabItem( LabelConflictsTab ) )
+            var conflicts = Penumbra.CollectionManager.Current.ModConflicts( Mod.Data.Index ).ToList();
+            if( conflicts.Count == 0 || !ImGui.BeginTabItem( LabelConflictsTab ) )
             {
                 return;
             }
@@ -203,32 +200,43 @@ public partial class SettingsInterface
             }
 
             raii.Push( ImGui.EndListBox );
-            using var indent = ImGuiRaii.PushIndent( 0 );
-            foreach( var (mod, (files, manipulations)) in Mod.Cache.Conflicts )
+            using var indent    = ImGuiRaii.PushIndent( 0 );
+            Mod.Mod?  oldBadMod = null;
+            foreach( var conflict in conflicts )
             {
-                if( ImGui.Selectable( mod.Data.Meta.Name ) )
+                var badMod = Penumbra.ModManager[ conflict.Mod2 ];
+                if( badMod != oldBadMod )
                 {
-                    _selector.SelectModByDir( mod.Data.BasePath.Name );
+                    if( oldBadMod != null )
+                    {
+                        indent.Pop( 30f );
+                    }
+
+                    if( ImGui.Selectable( badMod.Meta.Name ) )
+                    {
+                        _selector.SelectModByDir( badMod.BasePath.Name );
+                    }
+
+                    ImGui.SameLine();
+                    using var color = ImGuiRaii.PushColor( ImGuiCol.Text, conflict.Mod1Priority ? ColorGreen : ColorRed );
+                    ImGui.Text( $"(Priority {Penumbra.CollectionManager.Current[ conflict.Mod2 ].Settings!.Priority})" );
+
+                    indent.Push( 30f );
                 }
 
-                ImGui.SameLine();
-                ImGui.Text( $"(Priority {mod.Settings.Priority})" );
-
-                indent.Push( 15f );
-                foreach( var file in files )
+                if( conflict.Conflict is Utf8GamePath p )
                 {
                     unsafe
                     {
-                        ImGuiNative.igSelectable_Bool( file.Path.Path, 0, ImGuiSelectableFlags.None, Vector2.Zero );
+                        ImGuiNative.igSelectable_Bool( p.Path.Path, 0, ImGuiSelectableFlags.None, Vector2.Zero );
                     }
                 }
-
-                foreach( var manip in manipulations )
+                else if( conflict.Conflict is MetaManipulation m )
                 {
-                    //ImGui.Text( manip.IdentifierString() );
+                    ImGui.Selectable( m.Manipulation?.ToString() ?? string.Empty );
                 }
 
-                indent.Pop( 15f );
+                oldBadMod = badMod;
             }
         }
 
@@ -421,11 +429,12 @@ public partial class SettingsInterface
             {
                 _fullFilenameList = null;
                 _selector.SaveCurrentMod();
+                var idx = Penumbra.ModManager.Mods.IndexOf( Mod.Data );
                 // Since files may have changed, we need to recompute effective files.
-                foreach( var collection in Penumbra.CollectionManager.Collections
-                           .Where( c => c.Cache != null && c.Settings[ Mod.Data.BasePath.Name ].Enabled ) )
+                foreach( var collection in Penumbra.CollectionManager
+                           .Where( c => c.HasCache && c[ idx ].Settings?.Enabled == true ) )
                 {
-                    collection.CalculateEffectiveFileList( false, Penumbra.CollectionManager.IsActive( collection ) );
+                    collection.CalculateEffectiveFileList( false, collection == Penumbra.CollectionManager.Default );
                 }
 
                 // If the mod is enabled in the current collection, its conflicts may have changed.
@@ -553,12 +562,12 @@ public partial class SettingsInterface
             var oldEnabled = enabled;
             if( ImGui.Checkbox( label, ref enabled ) && oldEnabled != enabled )
             {
-                Mod.Settings.Settings[ group.GroupName ] ^= 1 << idx;
-                Save();
+                Penumbra.CollectionManager.Current.SetModSetting( Mod.Data.Index, group.GroupName,
+                    Mod.Settings.Settings[ group.GroupName ] ^ ( 1 << idx ) );
                 // If the mod is enabled, recalculate files and filters.
                 if( Mod.Settings.Enabled )
                 {
-                    _base.RecalculateCurrent( Mod.Data.Resources.MetaManipulations.Count > 0 );
+                    _selector.Cache.TriggerFilterReset();
                 }
             }
         }
@@ -591,12 +600,10 @@ public partial class SettingsInterface
                    , group.Options.Select( x => x.OptionName ).ToArray(), group.Options.Count )
             && code != Mod.Settings.Settings[ group.GroupName ] )
             {
-                Mod.Settings.Settings[ group.GroupName ] = code;
-                Save();
-                // If the mod is enabled, recalculate files and filters.
+                Penumbra.CollectionManager.Current.SetModSetting( Mod.Data.Index, group.GroupName, code );
                 if( Mod.Settings.Enabled )
                 {
-                    _base.RecalculateCurrent( Mod.Data.Resources.MetaManipulations.Count > 0 );
+                    _selector.Cache.TriggerFilterReset();
                 }
             }
         }
diff --git a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledDetailsEdit.cs b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledDetailsEdit.cs
index 3329a554..5bb4acaa 100644
--- a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledDetailsEdit.cs
+++ b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledDetailsEdit.cs
@@ -209,7 +209,7 @@ public partial class SettingsInterface
                 {
                     if( newName.Length > 0 )
                     {
-                        Mod.Settings.Settings[ group.GroupName ] = code;
+                        Penumbra.CollectionManager.Current.SetModSetting(Mod.Data.Index, group.GroupName, code);
                         group.Options.Add( new Option()
                         {
                             OptionName  = newName,
@@ -245,11 +245,6 @@ public partial class SettingsInterface
                 }
             }
 
-            if( code != oldSetting )
-            {
-                Save();
-            }
-
             ImGui.SameLine();
             var labelEditPos = ImGui.GetCursorPosX();
             DrawSingleSelectorEditGroup( group );
diff --git a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledModPanel.cs b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledModPanel.cs
index 10b85e3d..e6f3b170 100644
--- a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledModPanel.cs
+++ b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledModPanel.cs
@@ -69,7 +69,7 @@ public partial class SettingsInterface
             _currentWebsite = Meta?.Website ?? "";
         }
 
-        private Mod.Mod? Mod
+        private Mod.FullMod? Mod
             => _selector.Mod;
 
         private ModMeta? Meta
@@ -205,8 +205,7 @@ public partial class SettingsInterface
             ImGui.SetNextItemWidth( 50 * ImGuiHelpers.GlobalScale );
             if( ImGui.InputInt( "Priority", ref priority, 0 ) && priority != Mod!.Settings.Priority )
             {
-                Mod.Settings.Priority = priority;
-                _base.SaveCurrentCollection( Mod.Data.Resources.MetaManipulations.Count > 0 );
+                Penumbra.CollectionManager.Current.SetModPriority( Mod.Data.Index, priority );
                 _selector.Cache.TriggerFilterReset();
             }
 
@@ -220,24 +219,18 @@ public partial class SettingsInterface
             var enabled = Mod!.Settings.Enabled;
             if( ImGui.Checkbox( LabelModEnabled, ref enabled ) )
             {
-                Mod.Settings.Enabled = enabled;
+                Penumbra.CollectionManager.Current.SetModState( Mod.Data.Index, enabled );
                 if( enabled )
                 {
                     _newMods.Remove( Mod.Data.BasePath.Name );
                 }
-                else
-                {
-                    Mod.Cache.ClearConflicts();
-                }
-
-                _base.SaveCurrentCollection( Mod.Data.Resources.MetaManipulations.Count > 0 );
                 _selector.Cache.TriggerFilterReset();
             }
         }
 
-        public static bool DrawSortOrder( ModData mod, ModManager manager, Selector selector )
+        public static bool DrawSortOrder( Mod.Mod mod, Mod.Mod.Manager manager, Selector selector )
         {
-            var currentSortOrder = mod.SortOrder.FullPath;
+            var currentSortOrder = mod.Order.FullPath;
             ImGui.SetNextItemWidth( 300 * ImGuiHelpers.GlobalScale );
             if( ImGui.InputText( "Sort Order", ref currentSortOrder, 256, ImGuiInputTextFlags.EnterReturnsTrue ) )
             {
diff --git a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledSelector.cs b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledSelector.cs
index 1ae71c8b..5984ac48 100644
--- a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledSelector.cs
+++ b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledSelector.cs
@@ -410,11 +410,11 @@ public partial class SettingsInterface
     // Selection
     private partial class Selector
     {
-        public Mod.Mod? Mod { get; private set; }
+        public Mod.FullMod? Mod { get; private set; }
         private int    _index;
         private string _nextDir = string.Empty;
 
-        private void SetSelection( int idx, Mod.Mod? info )
+        private void SetSelection( int idx, Mod.FullMod? info )
         {
             Mod = info;
             if( idx != _index )
@@ -480,7 +480,7 @@ public partial class SettingsInterface
     private partial class Selector
     {
         // === Mod ===
-        private void DrawModOrderPopup( string popupName, Mod.Mod mod, bool firstOpen )
+        private void DrawModOrderPopup( string popupName, Mod.FullMod mod, bool firstOpen )
         {
             if( !ImGui.BeginPopup( popupName ) )
             {
@@ -496,7 +496,7 @@ public partial class SettingsInterface
 
             if( firstOpen )
             {
-                ImGui.SetKeyboardFocusHere( mod.Data.SortOrder.FullPath.Length - 1 );
+                ImGui.SetKeyboardFocusHere( mod.Data.Order.FullPath.Length - 1 );
             }
         }
 
@@ -527,10 +527,10 @@ public partial class SettingsInterface
             }
 
             Cache.TriggerFilterReset();
-            var collection = Penumbra.CollectionManager.CurrentCollection;
-            if( collection.Cache != null )
+            var collection = Penumbra.CollectionManager.Current;
+            if( collection.HasCache )
             {
-                collection.CalculateEffectiveFileList( metaManips, Penumbra.CollectionManager.IsActive( collection ) );
+                collection.CalculateEffectiveFileList( metaManips, collection == Penumbra.CollectionManager.Default );
             }
 
             collection.Save();
@@ -607,9 +607,9 @@ public partial class SettingsInterface
             Cache = new ModListCache( Penumbra.ModManager, newMods );
         }
 
-        private void DrawCollectionButton( string label, string tooltipLabel, float size, ModCollection2 collection )
+        private void DrawCollectionButton( string label, string tooltipLabel, float size, ModCollection collection )
         {
-            if( collection == ModCollection2.Empty
+            if( collection == ModCollection.Empty
             || collection  == Penumbra.CollectionManager.Current )
             {
                 using var _ = ImGuiRaii.PushStyle( ImGuiStyleVar.Alpha, 0.5f );
@@ -664,7 +664,7 @@ public partial class SettingsInterface
                         idx += sub.TotalDescendantMods();
                     }
                 }
-                else if( item is ModData _ )
+                else if( item is Mod.Mod _ )
                 {
                     var (mod, visible, color) = Cache.GetMod( idx );
                     if( mod != null && visible )
@@ -721,7 +721,7 @@ public partial class SettingsInterface
             }
         }
 
-        private void DrawMod( Mod.Mod mod, int modIndex, uint color )
+        private void DrawMod( Mod.FullMod mod, int modIndex, uint color )
         {
             using var colorRaii = ImGuiRaii.PushColor( ImGuiCol.Text, color, color != 0 );
 
@@ -736,7 +736,7 @@ public partial class SettingsInterface
                 firstOpen = true;
             }
 
-            DragDropTarget( mod.Data.SortOrder.ParentFolder );
+            DragDropTarget( mod.Data.Order.ParentFolder );
             DragDropSourceMod( modIndex, mod.Data.Meta.Name );
 
             DrawModOrderPopup( popupName, mod, firstOpen );
diff --git a/Penumbra/UI/SettingsInterface.cs b/Penumbra/UI/SettingsInterface.cs
index 8939be48..b406da71 100644
--- a/Penumbra/UI/SettingsInterface.cs
+++ b/Penumbra/UI/SettingsInterface.cs
@@ -55,26 +55,6 @@ public partial class SettingsInterface : IDisposable
         _menu.InstalledTab.Selector.Cache.TriggerListReset();
     }
 
-    private void SaveCurrentCollection( bool recalculateMeta )
-    {
-        var current = Penumbra.CollectionManager.CurrentCollection;
-        current.Save();
-        RecalculateCurrent( recalculateMeta );
-    }
-
-    private void RecalculateCurrent( bool recalculateMeta )
-    {
-        var current    = Penumbra.CollectionManager.CurrentCollection;
-        if( current.Cache != null )
-        {
-            current.CalculateEffectiveFileList( recalculateMeta, Penumbra.CollectionManager.IsActive( current ) );
-            _menu.InstalledTab.Selector.Cache.TriggerFilterReset();
-        }
-    }
-
     public void ResetDefaultCollection()
         => _menu.CollectionsTab.UpdateDefaultIndex();
-
-    public void ResetForcedCollection()
-        => _menu.CollectionsTab.UpdateForcedIndex();
 }
\ No newline at end of file
diff --git a/Penumbra/Util/ModelChanger.cs b/Penumbra/Util/ModelChanger.cs
index 6b2378f0..47d26e1b 100644
--- a/Penumbra/Util/ModelChanger.cs
+++ b/Penumbra/Util/ModelChanger.cs
@@ -74,7 +74,7 @@ public static class ModelChanger
         }
     }
 
-    public static bool ChangeModMaterials( ModData mod, string from, string to )
+    public static bool ChangeModMaterials( Mod.Mod mod, string from, string to )
     {
         if( ValidStrings( from, to ) )
         {