these 2 derivations will be built:
  /nix/store/7sqpibjabldyf3zmvkwijm79b51sfbbl-flake-inputs.drv
  /nix/store/j885fdva2ybnwklpl9jb0layv720g2yy-check-flake-inputs.drv
building '/nix/store/7sqpibjabldyf3zmvkwijm79b51sfbbl-flake-inputs.drv'
building '/nix/store/j885fdva2ybnwklpl9jb0layv720g2yy-check-flake-inputs.drv'

upload niks3: ok