these 2 derivations will be built: /nix/store/xq21cf8xjlx6sm1r2w0v0j53ybcc7xf1-flake-inputs.drv /nix/store/7r65jn6jxd2m0livffcm94pqr5gszl4v-check-flake-inputs.drv building '/nix/store/xq21cf8xjlx6sm1r2w0v0j53ybcc7xf1-flake-inputs.drv' building '/nix/store/7r65jn6jxd2m0livffcm94pqr5gszl4v-check-flake-inputs.drv' upload niks3: ok