these 2 derivations will be built: /nix/store/jzsl5nzz3kq18splfn99czibf78a93pp-flake-inputs.drv /nix/store/5gn25jisc0g81prlzg320bcdi5zrxl7n-check-flake-inputs.drv building '/nix/store/jzsl5nzz3kq18splfn99czibf78a93pp-flake-inputs.drv' building '/nix/store/5gn25jisc0g81prlzg320bcdi5zrxl7n-check-flake-inputs.drv' upload niks3: ok