this derivation will be built:
  /nix/store/mj8sd4d8c2dg8rnvjcky9ggndbr35rd2-niks3-server-docker.drv
this path will be fetched (4.3 MiB download, 11.1 MiB unpacked):
  /nix/store/rf9gqy0x9k7cpn6nd80fbsiw8a2y1fp3-regclient-0.11.6-regctl