this derivation will be built:
  /nix/store/ar0v553j71s8dj4r1pd3zy0wzrijjshx-check-workmux.drv
building '/nix/store/ar0v553j71s8dj4r1pd3zy0wzrijjshx-check-workmux.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/ar0v553j71s8dj4r1pd3zy0wzrijjshx-check-workmux.drv'

upload niks3: ok