these 2 derivations will be built: /nix/store/545b26345ca6n4rv0d3ix5nd5jg2j0jm-flake-inputs.drv /nix/store/y6jvh1g8d4hysibhw013zf3wq2pldqvr-check-flake-inputs.drv building '/nix/store/545b26345ca6n4rv0d3ix5nd5jg2j0jm-flake-inputs.drv' building '/nix/store/y6jvh1g8d4hysibhw013zf3wq2pldqvr-check-flake-inputs.drv' upload niks3: ok