these 2 derivations will be built:
  /nix/store/7f2qmnr4g0njznj65k0vpkicx80w15gx-flake-inputs.drv
  /nix/store/2vrn8k6ic18ngyp725l8xll0d31ah3as-check-flake-inputs.drv
building '/nix/store/7f2qmnr4g0njznj65k0vpkicx80w15gx-flake-inputs.drv'
building '/nix/store/2vrn8k6ic18ngyp725l8xll0d31ah3as-check-flake-inputs.drv'

upload niks3: ok