gaming: Enable gamescope

flake.nix

@@ -56,8 +56,7 @@
         ];
       };
     in {
-      # key-mapper only runs on linux
-      inherit (pkgs) key-mapper;
+      inherit (pkgs) gamescope;
     };
   });
 }

modules/programs/gaming/default.nix

@@ -22,8 +22,7 @@ in {
       
       steam-wrapped # Custom package
 
-      # Broken
-      # gamescope
+      gamescope
 
       corectrl
     ];

packages/default.nix

@@ -88,4 +88,6 @@ in {
   };
 
   sddm-sugar-dark = prev.callPackage themes/sddm/sugar-dark {};
+
+  gamescope = prev.callPackage temp/gamescope.nix {};
 }

packages/temp/gamescope.nix

@@ -0,0 +1,96 @@
+# From https://github.com/Jovian-Experiments/Jovian-NixOS/blob/d27526e7917671ad3a64f823f4b95b761f96807d/pkgs/gamescope/default.nix
+{ stdenv
+, fetchFromGitHub
+
+, meson
+, pkg-config
+, cmake
+, ninja
+
+, xorg
+, libdrm
+, vulkan-loader
+, wayland
+, wayland-protocols
+, libxkbcommon
+, libcap
+, SDL2
+, pipewire
+, mesa
+, udev
+, pixman
+, libinput
+, libseat
+, xwayland
+, glslang
+
+, stb
+, wlroots
+, libliftoff
+}:
+
+let
+in
+stdenv.mkDerivation {
+  pname = "gamescope";
+  version = "3.11.28-beta4";
+  src = fetchFromGitHub {
+    owner = "Plagman";
+    repo = "gamescope";
+    rev = "refs/tags/3.11.28-beta4";
+    hash = "sha256-3L3bQIPPfScvtN1dduh10dQu/AuTmD4dHNp3JjBIBLA=";
+  };
+
+  buildInputs = [
+    xorg.libX11
+    xorg.libXdamage
+    xorg.libXcomposite
+    xorg.libXrender
+    xorg.libXext
+    xorg.libXxf86vm
+    xorg.libXtst
+    xorg.libXres
+    libdrm
+    vulkan-loader
+    wayland
+    wayland-protocols
+    libxkbcommon
+    libcap
+    SDL2
+    pipewire
+    mesa
+    udev
+    pixman
+    libinput
+    libseat
+    xwayland
+    xorg.xcbutilwm
+    xorg.xcbutilerrors
+    glslang
+    xorg.libXi
+  ];
+
+  prePatch = ''
+    echo ":: Copying stb"
+    cp -vr "${stb.src}" subprojects/stb
+    chmod -R +w subprojects/stb
+    cp "subprojects/packagefiles/stb/meson.build" "subprojects/stb/"
+    echo ":: Copying wlroots"
+    rmdir subprojects/wlroots
+    cp -vr "${wlroots.src}" subprojects/wlroots
+    chmod -R +w subprojects/wlroots
+    echo ":: Copying libliftoff"
+    rmdir subprojects/libliftoff
+    cp -vr "${libliftoff.src}" subprojects/libliftoff
+    chmod -R +w subprojects/libliftoff
+  '';
+
+  nativeBuildInputs = [
+    cmake
+    meson
+    pkg-config
+    ninja
+  ];
+
+  dontUseCmakeConfigure = true;
+}