{ pkgs, ... }: let unstable = import <nixpkgs-unstable> { config.allowUnfree = true; }; in { services.minecraft-server = { enable = true; eula = true; package = unstable.minecraft-server; }; krebs.iptables.tables.filter.INPUT.rules = [ { predicate = "-p tcp --dport 25565"; target = "ACCEPT"; } { predicate = "-p udp --dport 25565"; target = "ACCEPT"; } { predicate = "-p tcp --dport 8123"; target = "ACCEPT"; } ]; }