steam: add extraCompatPackages

1 files changed, 13 insertions, 0 deletions

diff --git a/nixos/modules/programs/steam.nix b/nixos/modules/programs/steam.nix
index d6e2a82af100..d9fe8f54efd8 100644
--- a/nixos/modules/programs/steam.nix
+++ b/nixos/modules/programs/steam.nix
@@ -43,6 +43,9 @@ in {
         }
       '';
       apply = steam: steam.override (prev: {
+        extraEnv = (lib.optionalAttrs (cfg.extraCompatPackages != [ ]) {
+            STEAM_EXTRA_COMPAT_TOOLS_PATHS = makeBinPath cfg.extraCompatPackages;
+          }) // prev.extraEnv;
         extraLibraries = pkgs: let
           prevLibs = if prev ? extraLibraries then prev.extraLibraries pkgs else [ ];
           additionalLibs = with config.hardware.opengl;
@@ -68,6 +71,16 @@ in {
       '';
     };
 
+    extraCompatPackages = mkOption {
+      type = types.listOf types.package;
+      default = [ ];
+      description = lib.mdDoc ''
+        Extra packages to be used as compatibility tools for Steam on Linux. Packages will be included
+        in the `STEAM_EXTRA_COMPAT_TOOLS_PATHS` environmental variable. For more information see
+        <https://github.com/ValveSoftware/steam-for-linux/issues/6310">.
+      '';
+    };
+
     remotePlay.openFirewall = mkOption {
       type = types.bool;
       default = false;