this derivation will be built:
  /nix/store/d1zskkfabwmzl6drnq6mdpn2n1pgpli4-gastown-1.2.1.drv
these 2 paths will be fetched (569.1 KiB download, 1.4 MiB unpacked):
  /nix/store/r0cclgy286g5c2ifqrkddldhwyv8lbwv-libutempter-1.2.3
  /nix/store/zlrqzrkgs0hqa172gqj2wpcr6sijfh2p-tmux-3.7c