these 2 derivations will be built: /nix/store/zhh4varyzywqlzmnc8aginpl3a62vijv-flake-inputs.drv /nix/store/r837kipav4ivr32a96c7xpgdlyq42c03-check-flake-inputs.drv building '/nix/store/zhh4varyzywqlzmnc8aginpl3a62vijv-flake-inputs.drv' building '/nix/store/r837kipav4ivr32a96c7xpgdlyq42c03-check-flake-inputs.drv' upload niks3: ok