feat: zomboid: server but you cannot connect to it

nixos/system/hectic-lab/default.nix

@@ -12,6 +12,8 @@ in self.lib.nixpkgs-lib.nixosSystem {
   pkgs = import inputs.nixpkgs {
     inherit system;
     overlays = [ self.overlays.default ];
+    config.allowUnfreePredicate = pkg:
+      builtins.elem (inputs.nixpkgs.lib.getName pkg) [ "steamcmd" "steam-unwrapped" ];
   };
   modules = [
     { networking.hostName = name; }

nixos/system/hectic-lab/hectic-lab.nix

@@ -92,6 +92,13 @@ in {
     services.matrix = {
       enable = false;
     };
+    services."project-zomboid" = {
+      enable = true;
+      memory = "3g";
+      serverName = "servertest";
+      workshopItems = [ ];
+      mods = [ ];
+    };
     services.gitea-runner-controller = {
       # NOTE(yukkop): ephemeral Hetzner VM runners (1 VM = 1 job).
       # Runbook: infra/gitea-runners/runbook.md "Ephemeral VM runner cutover".
@@ -107,6 +114,14 @@ in {
     };
   };
 
+  zramSwap = {
+    enable        = true;
+    priority      = 100;
+    algorithm     = lib.mkDefault "zstd";
+    swapDevices   = 1;
+    memoryPercent = lib.mkDefault 100;
+  };
+
   # NOTE(yukkop): disk was provisioned by Hetzner rescue image, disko was never
   # run, so partition labels don't exist. Override fileSystems with actual UUIDs.
   fileSystems."/" = lib.mkForce {