these 2 derivations will be built:
  /nix/store/ffrdz19s806kja9sgbs3qcn89jwlw9mj-flake-inputs.drv
  /nix/store/a3avccr1n700a29bz7fjjzsqdyvfxaj4-check-flake-inputs.drv
building '/nix/store/ffrdz19s806kja9sgbs3qcn89jwlw9mj-flake-inputs.drv'
building '/nix/store/a3avccr1n700a29bz7fjjzsqdyvfxaj4-check-flake-inputs.drv'

upload niks3: ok