these 2 derivations will be built:
  /nix/store/ba1g8hn75lp0j12bj8ppxkm5h6qi0y4c-flake-inputs.drv
  /nix/store/lvww48jq4znb6hg4zv5gp1c4rg5z1sq7-check-flake-inputs.drv