steam mod, move adwaita to homeModules

nixosModules/adwaita.nix

@@ -1,12 +0,0 @@
-{ pkgs, ... }:
-{
-  gtk = {
-    enable = true;
-    iconTheme.name = "Adwaita";
-    cursorTheme.name = "Adwaita";
-    theme = {
-      name = "adw-gtk3-dark";
-      package = pkgs.adw-gtk3;
-    };
-  };
-}

nixosModules/allowed-unfree-list.nix

@@ -0,0 +1,15 @@
+{ lib, config, ... }:
+{
+  options.allowedUnfreePackages = lib.mkOption {
+    type = lib.types.listOf lib.types.str;
+    default = [ ];
+    example = [ "steam" ];
+  };
+
+  config = {
+    nixpkgs.config = {
+      # https://github.com/NixOS/nixpkgs/issues/197325#issuecomment-1579420085
+      allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) config.allowedUnfreePackages;
+    };
+  };
+}

nixosModules/extra-caches.nix

@@ -0,0 +1,16 @@
+{
+  nix.settings = {
+    substituters = [
+      "https://cache.nixos.org/"
+      "https://nix-community.cachix.org"
+      "https://cache.lix.systems"
+      "https://niri.cachix.org"
+    ];
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      "cache.lix.systems:aBnZUw8zA7H35Cz2RyKFVs3H4PlGTLawyY5KRbvJR8o="
+      "niri.cachix.org-1:Wv0OmO7PsuocRKzfDoJ3mulSl7Z6oezYhGhR+3W2964="
+    ];
+  };
+}

nixosModules/steam.nix

@@ -0,0 +1,48 @@
+{ nixosModules, ... }:
+{
+  imports = [ nixosModules.allowed-unfree-list ];
+
+  hardware.steam-hardware.enable = true;
+
+  programs = {
+    steam = {
+      enable = true;
+      remotePlay.openFirewall = true;
+      dedicatedServer.openFirewall = true;
+      localNetworkGameTransfers.openFirewall = true;
+      gamescopeSession.enable = false;
+    };
+    gamemode.enable = true;
+  };
+
+  # steam network transfer
+  networking.firewall = {
+    allowedUDPPorts = [ 3478 ];
+    allowedTCPPorts = [ 24070 ];
+
+    allowedTCPPortRanges = [
+      {
+        from = 27015;
+        to = 27050;
+      }
+    ];
+
+    allowedUDPPortRanges = [
+      {
+        from = 4379;
+        to = 4380;
+      }
+      {
+        from = 27000;
+        to = 27100;
+      }
+    ];
+  };
+
+  allowedUnfreePackages = [
+    "steam"
+    "steam-original"
+    "steam-run"
+    "steam-unwrapped"
+  ];
+}