these 2 derivations will be built: /nix/store/jkzwxzhph9qzawvmbz3cd1mhcw7sfv1r-flake-inputs.drv /nix/store/4vdhwfnm987ax0bhlj383q79g7zzv091-check-flake-inputs.drv building '/nix/store/jkzwxzhph9qzawvmbz3cd1mhcw7sfv1r-flake-inputs.drv' building '/nix/store/4vdhwfnm987ax0bhlj383q79g7zzv091-check-flake-inputs.drv' upload niks3: ok