no fucking clue what I changed but good luck (^_^)*

hosts/modules/steam.nix

@@ -0,0 +1,24 @@
+{
+  pkgs,
+  lib,
+  ...
+}: {
+  nixpkgs.config.allowUnfreePredicate = pkg:
+    builtins.elem (lib.getName pkg) [
+      "steam"
+      "steam-original"
+      "steam-unwrapped"
+      "steam-run"
+    ];
+
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;
+    dedicatedServer.openFirewall = true;
+    localNetworkGameTransfers.openFirewall = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    steamcmd
+  ];
+}