these 2 derivations will be built: /nix/store/y5j1g2w8pgqfs28y1ynkd1jc9ga5pgxg-flake-inputs.drv /nix/store/2kcslqn1p6yg100g1c5h2rcpbr70lr98-check-flake-inputs.drv building '/nix/store/y5j1g2w8pgqfs28y1ynkd1jc9ga5pgxg-flake-inputs.drv' building '/nix/store/2kcslqn1p6yg100g1c5h2rcpbr70lr98-check-flake-inputs.drv' upload niks3: ok