these 4 derivations will be built:
  /nix/store/gxh5f5s1by6s679pzk1y3dqqf7y8xjp2-clan-cli-source.drv
  /nix/store/ski5hi733wxx3ajkp8p7mqbra6k6ss5m-clan-cli.drv
  /nix/store/w4fdw2051z2rrh351nwr7zg9g21l6j1y-tofu.drv
  /nix/store/nl1gmrdg3af599di8yfsyrfirngy4lz4-dns.drv