src/Ryujinx.Common/Configuration/AppDataManager.cs

@@ -32,6 +32,7 @@ namespace Ryujinx.Common.Configuration
         public static string KeysDirPathUser { get; }
 
         public static string LogsDirPath { get; private set; }
+        public static string[] OverrideMods { get; private set; }
 
         public const string DefaultNandDir = "bis";
         public const string DefaultSdcardDir = "sdcard";
@@ -47,8 +48,9 @@ namespace Ryujinx.Common.Configuration
             KeysDirPathUser = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".switch");
         }
 
-        public static void Initialize(string baseDirPath)
+        public static void Initialize(string baseDirPath, string[] commandLineArgMods)
         {
+            OverrideMods = commandLineArgMods;
             string appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
 
             if (appDataPath.Length == 0)

src/Ryujinx.HLE/HOS/ModLoader.cs

@@ -41,11 +41,11 @@ namespace Ryujinx.HLE.HOS
 
         private static readonly ModMetadataJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
 
-        public readonly struct Mod<T> where T : FileSystemInfo
+        public struct Mod<T> where T : FileSystemInfo
         {
             public readonly string Name;
             public readonly T Path;
-            public readonly bool Enabled;
+            public bool Enabled;
 
             public Mod(string name, T path, bool enabled)
             {
@@ -169,7 +169,16 @@ namespace Ryujinx.HLE.HOS
                 if (StrEquals(RomfsDir, modDir.Name))
                 {
                     var modData = modMetadata.Mods.FirstOrDefault(x => modDir.FullName.Contains(x.Path));
-                    var enabled = modData?.Enabled ?? true;
+
+                    bool enabled;
+                    if (AppDataManager.OverrideMods.Length == 0)
+                    {
+                        enabled = modData?.Enabled ?? true;
+                    }
+                    else
+                    {
+                        enabled = AppDataManager.OverrideMods.Contains(modData.Name);
+                    }
 
                     mods.RomfsDirs.Add(mod = new Mod<DirectoryInfo>(dir.Name, modDir, enabled));
                     types.Append('R');
@@ -177,7 +186,16 @@ namespace Ryujinx.HLE.HOS
                 else if (StrEquals(ExefsDir, modDir.Name))
                 {
                     var modData = modMetadata.Mods.FirstOrDefault(x => modDir.FullName.Contains(x.Path));
-                    var enabled = modData?.Enabled ?? true;
+
+                    bool enabled;
+                    if (AppDataManager.OverrideMods.Length == 0)
+                    {
+                        enabled = modData?.Enabled ?? true;
+                    }
+                    else
+                    {
+                        enabled = AppDataManager.OverrideMods.Contains(modData.Name);
+                    }
 
                     mods.ExefsDirs.Add(mod = new Mod<DirectoryInfo>(dir.Name, modDir, enabled));
                     types.Append('E');

src/Ryujinx/Headless/HeadlessRyujinx.cs

@@ -1,6 +1,7 @@
 using CommandLine;
 using Gommon;
 using Ryujinx.Ava;
+using Ryujinx.Ava.Utilities;
 using Ryujinx.Ava.Utilities.Configuration;
 using Ryujinx.Common;
 using Ryujinx.Common.Configuration;
@@ -147,7 +148,7 @@ namespace Ryujinx.Headless
                 option.InheritMainConfig(originalArgs, ConfigurationState.Instance, out useLastUsedProfile);
             }
 
-            AppDataManager.Initialize(option.BaseDataDir);
+            AppDataManager.Initialize(option.BaseDataDir, option.OverrideMods.Split(","));
 
             if (useLastUsedProfile && AccountSaveDataManager.GetLastUsedUser().TryGet(out var profile))
                 option.UserProfile = profile.Name;

src/Ryujinx/Headless/Options.cs

@@ -420,5 +420,11 @@ namespace Ryujinx.Headless
         public string InputPath { get; set; }
 
         public SafeDictionary<PlayerIndex, InputConfig> InheritedInputConfigs = new();
+
+        // Mod
+
+        [Option('m', "mod", Required = false, Default = "", HelpText = "Overrides enabled mods with user input (Format: \"mod1\",\"mod2\").")]
+        public string OverrideMods { get; set; }
+
     }
 }

src/Ryujinx/Program.cs

@@ -114,7 +114,7 @@ namespace Ryujinx.Ava
             AppDomain.CurrentDomain.ProcessExit += (_, _) => Exit();
             
             // Setup base data directory.
-            AppDataManager.Initialize(CommandLineState.BaseDirPathArg);
+            AppDataManager.Initialize(CommandLineState.BaseDirPathArg, CommandLineState.OverrideMods);
 
             // Initialize the configuration.
             ConfigurationState.Initialize();

src/Ryujinx/Utilities/CommandLineState.cs

@@ -1,4 +1,5 @@
 using Ryujinx.Common.Logging;
+using System;
 using System.Collections.Generic;
 
 namespace Ryujinx.Ava.Utilities
@@ -6,6 +7,7 @@ namespace Ryujinx.Ava.Utilities
     public static class CommandLineState
     {
         public static string[] Arguments { get; private set; }
+        public static string[] OverrideMods { get; private set; }
 
         public static bool? OverrideDockedMode { get; private set; }
         public static bool? OverrideHardwareAcceleration { get; private set; }
@@ -78,6 +80,17 @@ namespace Ryujinx.Ava.Utilities
                     case "--application-id":
                         LaunchApplicationId = args[++i];
                         break;
+                    case "-m":
+                    case "--mod":
+                        if (i + 1 >= args.Length)
+                        {
+                            Logger.Error?.Print(LogClass.Application, $"Invalid option '{arg}'");
+
+                            continue;
+                        }
+
+                        OverrideMods = args[++i].Split(',');
+                        break;
                     case "--docked-mode":
                         OverrideDockedMode = true;
                         break;