another one :D

system/opt/android/default.nix

@@ -0,0 +1 @@
+{ programs.adb.enable = true; }

system/opt/bottles/default.nix

@@ -0,0 +1,3 @@
+{pkgs, ...}: {
+  environment.systemPackages = [pkgs.bottles-unwrapped];
+}

system/opt/corectrl/default.nix

@@ -0,0 +1,9 @@
+{
+  programs.corectrl = {
+    enable = true;
+    gpuOverclock = {
+      enable = true;
+      ppfeaturemask = "0xffffffff";
+    };
+  };
+}

system/opt/gamemode/default.nix

@@ -0,0 +1,29 @@
+{
+  pkgs,
+  inputs,
+  ...
+}: {
+  programs.gamemode = {
+    enable = true;
+    settings = {
+      general = {
+        softrealtime = "auto";
+        renice = 15;
+      };
+      # gpu = {
+      #   apply_gpu_optimisations = "accept-responsibility";
+      #   gpu_device = 1;
+      #   amd_performance_level = "high";
+      # };
+      custom = {
+        start = "${pkgs.libnotify}/bin/notify-send 'GameMode started'";
+        end = "${pkgs.libnotify}/bin/notify-send 'GameMode ended'";
+      };
+    };
+  };
+  # see https://github.com/fufexan/nix-gaming/#pipewire-low-latency
+  services.pipewire.lowLatency.enable = true;
+  imports = [
+    inputs.nix-gaming.nixosModules.pipewireLowLatency
+  ];
+}

system/opt/gamescope/default.nix

@@ -0,0 +1,10 @@
+{
+  programs.gamescope = {
+    enable = true;
+    capSysNice = true;
+    args = [
+      "--rt"
+      "--expose-wayland"
+    ];
+  };
+}

system/opt/gaming.nix

@@ -0,0 +1,20 @@
+{pkgs, ...}: {
+  imports = [
+    ./steam
+    ./lutris
+    # ./bottles
+    ./gamemode
+    ./gamescope
+    ./corectrl
+  ];
+  environment = {
+    systemPackages = with pkgs; [
+      # Misc
+      protonup
+      winetricks
+    ];
+    sessionVariables = {
+      STEAM_EXTRA_COMPAT_TOOLS_PATHS = "/home/cnst/.steam/root/compatibilitytools.d";
+    };
+  };
+}

system/opt/gimp/default.nix

@@ -0,0 +1,5 @@
+{pkgs, ...}: {
+  environment.systemPackages = with pkgs; [
+    gimp-with-plugins
+  ];
+}

system/opt/inkscape/default.nix

@@ -0,0 +1,5 @@
+{pkgs, ...}: {
+  environment.systemPackages = with pkgs; [
+    inkscape-with-extensions
+  ];
+}

system/opt/lutris/default.nix

@@ -0,0 +1,5 @@
+{pkgs, ...}: {
+  environment.systemPackages = with pkgs; [
+    lutris
+  ];
+}

system/opt/steam/default.nix

@@ -0,0 +1,8 @@
+{
+  programs = {
+    steam = {
+      enable = true;
+      gamescopeSession.enable = true;
+    };
+  };
+}