these 2 derivations will be built: /nix/store/4yzz5hnb5bd68zvnf2vapd72f74vzd7z-flake-inputs.drv /nix/store/9y1qpfvclk76gq5isiykz3kcb4cpkh29-check-flake-inputs.drv building '/nix/store/4yzz5hnb5bd68zvnf2vapd72f74vzd7z-flake-inputs.drv' building '/nix/store/9y1qpfvclk76gq5isiykz3kcb4cpkh29-check-flake-inputs.drv' upload niks3: ok