{ pkgs, config, ... }:
let
  maxPower = 90;
  pool = "eu1.ethermine.org";
  toolkit = "opencl";
  wallet = "";
  rig = config.networking.hostName;
  recheckInterval = 2000;
  package = pkgs.ethminer;
in {

  systemd.services.ethminer = {
    description = "ethminer ethereum mining service";
    wantedBy = [ "multi-user.target" ];
    after = [ "network.target" ];

    serviceConfig = {
      DynamicUser = true;
      ExecStartPre = "${package}/bin/.ethminer-wrapped --list-devices";
      Restart = "always";
    };

    script = ''
      ${package}/bin/.ethminer-wrapped \
        --farm-recheck ${toString recheckInterval} \
        --report-hashrate \
        --${toolkit} \
        --pool stratum1+tcp://${wallet}.${rig}@${pool}:4444
    '';

  };

  # https://wiki.archlinux.org/title/GPGPU#Intel
  hardware.opengl = {
    enable = true;
    extraPackages = with pkgs; [ intel-ocl intel-compute-runtime beignet ];
    driSupport = true;
    driSupport32Bit = true;
  };

  environment.systemPackages = with pkgs; [
    package
    # go-ethereum
    go-ethereum
    # to check opencl config
    clinfo
    # check temperature
    i7z
  ];

}