these 2 derivations will be built:
  /nix/store/59xn7wsrhp0rq2fv312lc52nv6qg4a1c-letta-code-src-with-lock.drv
  /nix/store/sm5gcn8wrbq2gakkkx0076bdqld7yc5i-letta-code-0.31.7.drv