these 2 derivations will be built: /nix/store/3aal4wfjsrclmpkh2qlzi0jwy570jrqm-flake-inputs.drv /nix/store/6dkngcsq1qmb7svz4p13327xpdmv36wr-check-flake-inputs.drv building '/nix/store/3aal4wfjsrclmpkh2qlzi0jwy570jrqm-flake-inputs.drv' building '/nix/store/6dkngcsq1qmb7svz4p13327xpdmv36wr-check-flake-inputs.drv' upload niks3: ok