these 3 derivations will be built:
  /nix/store/inxisa2yckv5ks04ysw92wnjbc05hm9d-letta-code-src-with-lock.drv
  /nix/store/ac3c4xyqfyij85lp5csck9p0xkfh4q3f-letta-code-0.34.51.drv
  /nix/store/bbv4krd2mmi4q6hsx2pcxcfw85p8ybws-check-letta-code.drv