this derivation will be built:
  /nix/store/a26mlyzx6bcz5f8kn7vqr59l30m67dnb-happy-coder-1.2.4.drv
this path will be fetched (9.7 MiB download, 113.1 MiB unpacked):
  /nix/store/v4a5jah0q794p08n8604vh2prpxx8p2p-difftastic-0.71.0