these 2 derivations will be built:
  /nix/store/biwxvadpj0b49g93yk1vx92v4b7lr23n-flake-inputs.drv
  /nix/store/6pj7svc9hpqln00bnw4bxsph2gdkv11y-check-flake-inputs.drv
building '/nix/store/biwxvadpj0b49g93yk1vx92v4b7lr23n-flake-inputs.drv'
building '/nix/store/6pj7svc9hpqln00bnw4bxsph2gdkv11y-check-flake-inputs.drv'

upload niks3: ok