these 2 derivations will be built:
  /nix/store/3hsbdgr8pypi4h5fxk2ls417nr22q45s-process-compose-dev.json.drv
  /nix/store/i0g2xdc2dh3xvrlfipw6iab6px1b7j8q-dev.drv
this path will be fetched (12.9 MiB download, 41.1 MiB unpacked):
  /nix/store/d9f7p5bzq26ya0xck9jdadb8ybcn35m9-process-compose-1.120.0