add palworld

flake.nix

@@ -72,6 +72,7 @@
         ./modules/netdata.nix
         ./modules/step-ca.nix
         ./modules/tmpfs.nix
+        ./modules/games/palworld.nix
         ./modules/logging.nix
         ### Hardware ###
         ./modules/hardware/ssd.nix

modules/games/palworld.nix

@@ -0,0 +1,45 @@
+# valheim.nix
+{config, pkgs, lib, ...}: let
+in {
+
+	networking.firewall.allowedUDPPorts = [ 8221 ]; #5349 ];
+	users.users.palworld = {
+		isSystemUser = true;
+		# Valheim puts save data in the home directory.
+		home = "/var/lib/palworld";
+		createHome = true;
+		homeMode = "750";
+		group = "palworld";
+	};
+
+	users.groups.palworld = {};
+
+	systemd.services.palworld = {
+		wantedBy = [ "multi-user.target" ];
+
+		wants = [ "network-online.target" ];
+		after = [ "network-online.target" ];
+
+		preStart = ''
+		   ${pkgs.steamcmd}/bin/steamcmd \
+   		     +login anonymous \
+   		     +force_install_dir /var/lib/palworld \
+   		     +app_update 2394010 validate \
+   		     +quit
+   		 '';
+		script = "${pkgs.steam-run}/bin/steam-run /var/lib/palworld/Pal/Binaries/Linux/PalServer-Linux-Test";
+
+		serviceConfig = {
+			Nice = "-5";
+			PrivateTmp = true;
+			Restart = "always";
+			User = "palworld";
+			WorkingDirectory = "~";
+		};
+		environment = {
+			# linux64 directory is required by Valheim.
+			LD_LIBRARY_PATH = "/var/lib/palworld/linux64:${pkgs.glibc}/lib";
+			SteamAppId = "2394010";
+		};
+	};
+}