these 2 derivations will be built: /nix/store/phw54hkglfznl8b19yr4wgy4v3qhcz0a-flake-inputs.drv /nix/store/x1xdi0ylkkscndg89a5pa5miwgccvya5-check-flake-inputs.drv building '/nix/store/phw54hkglfznl8b19yr4wgy4v3qhcz0a-flake-inputs.drv' building '/nix/store/x1xdi0ylkkscndg89a5pa5miwgccvya5-check-flake-inputs.drv' upload niks3: ok