these 3 derivations will be built:
  /nix/store/mycb69cyzk6zcc9sad7f0b138wbfmnds-letta-code-src-with-lock.drv
  /nix/store/51ir6pk4s1imh1k5kpnwb3hn9wh47siv-letta-code-0.34.53.drv
  /nix/store/qnzl8zsdi2f9v2nkcqhkipkab3x16sx8-check-letta-code.drv