{ pkgs, ... }:
let
  build-flake-script = pkgs.writeShellApplication {
    name = "build-flake-script";
    runtimeInputs = with pkgs; [
      git
      nix
      nixos-rebuild
      jq
      curl
    ];
    text = builtins.readFile ./build-flakes.sh;
  };
in
{
  systemd.services."build-flakes" = {
    serviceConfig = {
      Type = "exec";
      ExecStart = "${build-flake-script}/bin/build-flake-script";
    };
  };
  systemd.timers."build-flakes" = {
    enable = true;
    wantedBy = [ "timers.target" ];
    timerConfig = {
      OnCalendar = "*-*-* *:30:00";
    };
  };
}