{ config, pkgs, ... }:

{
  services.minecraft-servers.servers.fabric-modless = {
    enable = true;
    package = pkgs.fabricServers.fabric-1_21_11;
    autoStart = true;
    jvmOpts = "-Xms1024M -Xmx4096M";

    serverProperties = {
      server-port = 30001;
      difficulty = 3;
      max-players = 30;
    };

    symlinks = {
      mods = pkgs.linkFarmFromDrvs "mods" (builtins.attrValues {
        FabricAPI = pkgs.fetchurl { url = "https://cdn.modrinth.com/data/P7dR8mSH/versions/KhCFoeip/fabric-api-0.139.5%2B1.21.11.jar"; sha512 = "hSyedhdbLVHOoZG/zAAFuCTeQz8abeAdZyuegsocq4R4sYBnC8bEgRdE70q+yL0v86sPnBqlZEcT0G8/vMJ48A=="; };
        Chunky = pkgs.fetchurl { url = "https://cdn.modrinth.com/data/fALzjamp/versions/bk9YUabA/Chunky-Fabric-1.4.54.jar"; sha512 = "vxX9sMDiBMKUdmxrkvDcidlulM5PcLmKxC6qRrh4Aq9Wz+tlSHePSUWx/cL+VholR39xGTfb85DiC5TBvQBsrg=="; };
        Ferritecore = pkgs.fetchurl { url = "https://cdn.modrinth.com/data/uXXizFIs/versions/eRLwt73x/ferritecore-8.0.3-fabric.jar"; sha512 = "vmAFQ+SZtZKG+UCfRkl1cK3FGTmuY+qhKsKeZ3jaJ9jHxs0LM0DYvMocyZzmF3mxqPUrmQ+eTpqTqpxkgpBSMQ=="; };
        NoChatReports = pkgs.fetchurl { url = "https://cdn.modrinth.com/data/qQyHxfxd/versions/78RjC1gi/NoChatReports-FABRIC-1.21.10-v2.16.0.jar"; sha512 = "ObLyhPc/gpABK4ucxwCF1ZZoVH/HtOxDqzTkvKazmmaR++MrwzJuQDU7qcFqBjIOUoGDFb53eZparVJjcMvHcw=="; };
        FabricProxyLite = pkgs.fetchurl { url = "https://cdn.modrinth.com/data/8dI2tmqs/versions/nR8AIdvx/FabricProxy-Lite-2.11.0.jar"; sha512 = "wuHZJ59vGaVh+TS4RlQLKKAzWGtLQZucGqJ6xD/8j60s5g4hKhVAbl+jkH/17L5a96XtsYOp7mc3pB5GSuwTdQ=="; };
      });
    };
  };

  services.minecraft-servers.servers.velocity.symlinks."velocity.toml".value = {
    servers = {
      fabric-modless = "127.0.0.1:30001";

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