{ lib, beamPackages, fetchgit }:

beamPackages.mixRelease rec {
  pname = "systant";
  version = "0.1.0";

  src = fetchgit {
    url = "https://git.ryanpandya.com/ryan/systant.git";
    rev = "9d8ad1890b682a58aaa27406a7f28337c4c67d5f";
    sha256 = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
  };

  # Mix dependencies will be automatically fetched and cached by Nix
  mixFodDeps = beamPackages.fetchMixDeps {
    pname = "systant-mix-deps";
    inherit src version;
    sha256 = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
  };

  # Ensure COOKIE file exists
  postInstall = ''
    if [ ! -f $out/releases/COOKIE ]; then
      mkdir -p $out/releases
      echo "systant-cookie-change-in-production" > $out/releases/COOKIE
    fi
  '';

  meta = with lib; {
    description = "Systant - System stats MQTT daemon for monitoring system metrics";
    homepage = "https://git.ryanpandya.com/ryan/systant";
    license = licenses.mit;
    maintainers = [ ];
    platforms = platforms.linux;
  };
}