this derivation will be built:
  /nix/store/x0zrs618zqrixsrlndwl1mh9xgfilzsj-check-openspec.drv
building '/nix/store/x0zrs618zqrixsrlndwl1mh9xgfilzsj-check-openspec.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/x0zrs618zqrixsrlndwl1mh9xgfilzsj-check-openspec.drv'

upload niks3: ok