this derivation will be built:
  /nix/store/ya1n4ddlkw3y078qdlj9cm8p22izrsqm-happy-coder-1.2.4.drv
this path will be fetched (9.5 MiB download, 113.2 MiB unpacked):
  /nix/store/34j63vxkv23dvanwhymcyxwyqk8vmza4-difftastic-0.71.0