these 2 derivations will be built:
  /nix/store/im9yr9r7q2anvsgvbj5azp1p8vanklcc-flake-inputs.drv
  /nix/store/wjcha1acpama3k2zyhbn8hmakzpdkzwp-check-flake-inputs.drv
building '/nix/store/im9yr9r7q2anvsgvbj5azp1p8vanklcc-flake-inputs.drv'
building '/nix/store/wjcha1acpama3k2zyhbn8hmakzpdkzwp-check-flake-inputs.drv'

upload niks3: ok