add steam module

sadly this has to be a system package until we find a non shitty way of
installing in through hm

nixos/default.nix

@@ -1 +1,10 @@
-{}
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: {
+  imports = [
+    ./trash
+  ];
+}

nixos/trash/default.nix

@@ -0,0 +1,10 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: {
+  imports = [
+    ./steam
+  ];
+}

nixos/trash/steam/default.nix

@@ -0,0 +1,55 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.options.trivium;
+in {
+  options.trivium = {
+    enable = mkEnableOption "steam settings";
+
+    compatibilityPackages = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Enable additional compatibility packages (protontricks, protonup, etc.)";
+    };
+
+    remotePlayOpenFirewall = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Open firewall for Steam Remote Play";
+    };
+
+    dedicatedServerOpenFirewall = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Open firewall for Steam Dedicated Server";
+    };
+
+    localNetworkGameTransfersOpenFirewall = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Open firewall for Steam Local Network Game Transfers";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    programs.steam = {
+      enable = true;
+      remotePlay.openFirewall = cfg.remotePlayOpenFirewall;
+      dedicatedServer.openFirewall = cfg.dedicatedServerOpenFirewall;
+      localNetworkGameTransfers.openFirewall = cfg.localNetworkGameTransfersOpenFirewall;
+    };
+
+    environment = mkIf cfg.compatibilityPackages {
+      systemPackages = with pkgs; [
+        protontricks
+        protonup
+        protonup-ng
+        winetricks
+      ];
+    };
+  };
+}