Modularize programs and add starship

modules/programs/gaming.nix

@@ -0,0 +1,72 @@
+{ lib, config, options, pkgs, ... }: {
+  options.mods.gaming = {
+    enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+      description = "Enabled gaming related features.";
+    };
+    tools = lib.mkOption {
+      default = with pkgs; [
+        gamemode
+        steam
+        lutris
+        wine
+        adwsteamgtk
+        heroic
+      ];
+      example = [ ];
+      type = with lib.types; listOf packages;
+      description = "Install gaming related packages";
+    };
+    steam = lib.mkOption {
+      default = true;
+      example = false;
+      type = lib.types.bool;
+      description = "Whether to use steam";
+    };
+    gamemode = lib.mkOption {
+      default = true;
+      example = false;
+      type = lib.types.bool;
+      description = "Whether to use gamemode";
+    };
+    gpu_optimization = lib.mkOption {
+      default = true;
+      example = false;
+      type = lib.types.bool;
+      description = "Whether to use GPU performance setting. NOTE: this is at your own risk!";
+    };
+    gpu_device = lib.mkOption {
+      default = "0";
+      example = "1";
+      type = lib.types.str;
+      description = "Your gpu device.(Physical id of lshw)";
+    };
+  };
+  config = lib.mkIf config.mods.gaming.enable
+    (lib.optionalAttrs (options?environment.systemPackages) {
+      environment.systemPackages = config.mods.gaming.tools;
+
+      programs.steam.enable = config.mods.gaming.steam;
+      programs.gamemode.enable = true;
+      programs.gamemode = {
+        enableRenice = true;
+        settings = {
+          general = {
+            governor = "performance";
+          };
+          gpu = lib.mkIf config.mods.gaming.gpu_optimization {
+            apply_gpu_optimisations = "accept-responsibility";
+            gpu_device = config.mods.gaming.gpu_device;
+            amd_performance_level = "high";
+            nv_powermizer_mode = 1;
+          };
+          custom = {
+            start = "notify-send -a 'Gamemode' 'Optimizations activated'";
+            end = "notify-send -a 'Gamemode' 'Optimizations deactivated'";
+          };
+        };
+      };
+    });
+}