NixOSConfig/lib/modules/rclone.nix

{ config, lib, pkgs, ... }: {
  options = {
    programs.rclone = {
      enable = lib.mkEnableOption "rclone";
    };
  };

  config =
    let
      cfg = config.programs.rclone;
    in {
      home.packages = lib.optional cfg.enable pkgs.rclone;

      systemd.user = lib.optionalAttrs cfg.enable {
        enable = true;

        services.rclone = {
          Unit = {
            Description = "rclone Starter";
            Documentation = "man:rclone(1)";
          };

          Service = {
            Type = "simple";

            ExecStartPre =
              let
                script = pkgs.writeShellScriptBin "rclone-pre" ''
                  sleep 10
                '';
              in
                (lib.getExe script);

            ExecStart =
              let
                script = pkgs.writeShellScriptBin "rclone" ''
                  systemctl --user start rclone.target
                '';
              in
                (lib.getExe script);
          };
        };

        targets.rclone = {
          Unit = {
            Description = "rclone Mounts";
            Documentation = "man:rclone(1)";
          };
        };
      };
    };
}