this derivation will be built:
  /nix/store/3d2b5sl65kfv7kbb0k7662s26cn6vi9l-check-sandbox-runtime.drv
building '/nix/store/3d2b5sl65kfv7kbb0k7662s26cn6vi9l-check-sandbox-runtime.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/3d2b5sl65kfv7kbb0k7662s26cn6vi9l-check-sandbox-runtime.drv'

upload niks3: ok