these 2 derivations will be built: /nix/store/mpv8lad6i24m1yyn4xc96d17wzjcwz51-flake-inputs.drv /nix/store/d9wwammws7p1df5l5x25qcwxx5y7rgx0-check-flake-inputs.drv building '/nix/store/mpv8lad6i24m1yyn4xc96d17wzjcwz51-flake-inputs.drv' building '/nix/store/d9wwammws7p1df5l5x25qcwxx5y7rgx0-check-flake-inputs.drv' upload niks3: ok