nixos/steam: add protontricks submodule

2 files changed, 12 insertions, 3 deletions

diff --git a/nixos/modules/programs/steam.nix b/nixos/modules/programs/steam.nix
index d317398495f54..26faf40d5ce1d 100644
--- a/nixos/modules/programs/steam.nix
+++ b/nixos/modules/programs/steam.nix
@@ -4,6 +4,8 @@ let
   cfg = config.programs.steam;
   gamescopeCfg = config.programs.gamescope;
 
+  extraCompatPaths = lib.makeSearchPathOutput "steamcompattool" "" cfg.extraCompatPackages;
+
   steam-gamescope = let
     exports = builtins.attrValues (builtins.mapAttrs (n: v: "export ${n}=${v}") cfg.gamescopeSession.env);
   in
@@ -42,7 +44,7 @@ in {
       '';
       apply = steam: steam.override (prev: {
         extraEnv = (lib.optionalAttrs (cfg.extraCompatPackages != [ ]) {
-          STEAM_EXTRA_COMPAT_TOOLS_PATHS = lib.makeSearchPathOutput "steamcompattool" "" cfg.extraCompatPackages;
+          STEAM_EXTRA_COMPAT_TOOLS_PATHS = extraCompatPaths;
         }) // (lib.optionalAttrs cfg.extest.enable {
           LD_PRELOAD = "${pkgs.pkgsi686Linux.extest}/lib/libextest.so";
         }) // (prev.extraEnv or {});
@@ -139,6 +141,11 @@ in {
       Load the extest library into Steam, to translate X11 input events to
       uinput events (e.g. for using Steam Input on Wayland)
     '';
+
+    protontricks = {
+      enable = lib.mkEnableOption "protontricks, a simple wrapper for running Winetricks commands for Proton-enabled games";
+      package = lib.mkPackageOption pkgs "protontricks" { };
+    };
   };
 
   config = lib.mkIf cfg.enable {
@@ -169,7 +176,8 @@ in {
     environment.systemPackages = [
       cfg.package
       cfg.package.run
-    ] ++ lib.optional cfg.gamescopeSession.enable steam-gamescope;
+    ] ++ lib.optional cfg.gamescopeSession.enable steam-gamescope
+    ++ lib.optional cfg.protontricks.enable (cfg.protontricks.package.override { inherit extraCompatPaths; });
 
     networking.firewall = lib.mkMerge [
       (lib.mkIf (cfg.remotePlay.openFirewall || cfg.localNetworkGameTransfers.openFirewall) {
diff --git a/pkgs/tools/package-management/protontricks/default.nix b/pkgs/tools/package-management/protontricks/default.nix
index c3c43163c6710..a3ba1f112fb85 100644
--- a/pkgs/tools/package-management/protontricks/default.nix
+++ b/pkgs/tools/package-management/protontricks/default.nix
@@ -12,6 +12,7 @@
 , yad
 , pytestCheckHook
 , nix-update-script
+, extraCompatPaths ? ""
 }:
 
 buildPythonApplication rec {
@@ -51,7 +52,7 @@ buildPythonApplication rec {
     ]}"
     # Steam Runtime does not work outside of steam-run, so don't use it
     "--set STEAM_RUNTIME 0"
-  ];
+  ] ++ lib.optional (extraCompatPaths != "") "--set STEAM_EXTRA_COMPAT_TOOLS_PATHS ${extraCompatPaths}";
 
   nativeCheckInputs = [ pytestCheckHook ];