these 2 derivations will be built:
  /nix/store/khkjknzf020bd9nbrndbrg0ga0cd3hwc-flake-inputs.drv
  /nix/store/1vshbn0w1m4aqak5b1nf4gykln9861cj-check-flake-inputs.drv
building '/nix/store/khkjknzf020bd9nbrndbrg0ga0cd3hwc-flake-inputs.drv'
building '/nix/store/1vshbn0w1m4aqak5b1nf4gykln9861cj-check-flake-inputs.drv'

upload niks3: ok