these 2 derivations will be built:
  /nix/store/k5n9k8qd0xh0l089axfirbp2aj0mzyhq-flake-inputs.drv
  /nix/store/lxkb7mdmn3knp1fyxha20sg32ja3y504-check-flake-inputs.drv
building '/nix/store/k5n9k8qd0xh0l089axfirbp2aj0mzyhq-flake-inputs.drv'
building '/nix/store/lxkb7mdmn3knp1fyxha20sg32ja3y504-check-flake-inputs.drv'

upload niks3: ok