these 2 derivations will be built:
  /nix/store/h4g6apwkibmp716kfmhi4802gv0s3hwg-letta-code-src-with-lock.drv
  /nix/store/sa1yq51qnpvfjbw9d5l96n6jmyxpk6m4-letta-code-0.31.4.drv