these 2 derivations will be built:
  /nix/store/7mknfxnbp5l8gkrb2nng0g5ri1ydp0h0-llm-agents-site.drv
  /nix/store/z47gmpw5p6hzl4ms6jrpxkay3dplbpgz-check-site.drv