these 2 derivations will be built: /nix/store/addrl6rxlfjxzh8vqyhlfjmm05kfy9jy-flake-inputs.drv /nix/store/bh0jlf405mxhzalw8xfayk5df0g9v868-check-flake-inputs.drv building '/nix/store/addrl6rxlfjxzh8vqyhlfjmm05kfy9jy-flake-inputs.drv' building '/nix/store/bh0jlf405mxhzalw8xfayk5df0g9v868-check-flake-inputs.drv' upload niks3: ok