{ config, pkgs, ... }:

let
  forge-impure = pkgs.vanillaServers.vanilla.overrideAttrs (oldAttrs: {
    src = ./forge.jar;
  });
in
{
  services.minecraft-servers.servers.forge-impure = {
    enable = true;
    package = forge-impure;
    autoStart = true;
    jvmOpts = "-Xms4096M -Xmx4096M";

    serverProperties = {
      server-port = 30004;
      difficulty = 3;
      max-players = 30;
    };
  };

  services.minecraft-servers.servers.velocity.symlinks."velocity.toml".value = {
    servers = {
      fabric-modless = "127.0.0.1:30004";

      # In what order we should try servers when a player logs in or is kicked from a server.
      try = [
          "forge-impure"
      ];
    };
  };
}