these 2 derivations will be built: /nix/store/kfgnmslikk28a38i43blhsablxw4xkp3-flake-inputs.drv /nix/store/7cpz3mj0fzjaip9dvr3jysmi1cdxh3ay-check-flake-inputs.drv building '/nix/store/kfgnmslikk28a38i43blhsablxw4xkp3-flake-inputs.drv' building '/nix/store/7cpz3mj0fzjaip9dvr3jysmi1cdxh3ay-check-flake-inputs.drv' upload niks3: ok