these 2 derivations will be built: /nix/store/g1b83rkrgpbv7vbg6dmir0jr7z7rbm8k-flake-inputs.drv /nix/store/l4dj5l5hnrkzqi7g714hckshi18ij85r-check-flake-inputs.drv building '/nix/store/g1b83rkrgpbv7vbg6dmir0jr7z7rbm8k-flake-inputs.drv' building '/nix/store/l4dj5l5hnrkzqi7g714hckshi18ij85r-check-flake-inputs.drv' upload niks3: ok