this derivation will be built:
  /nix/store/2m61q9cam0k5a7mx2fw7pw03jil1yd3w-treefmt-check.drv
building '/nix/store/2m61q9cam0k5a7mx2fw7pw03jil1yd3w-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/2m61q9cam0k5a7mx2fw7pw03jil1yd3w-treefmt-check.drv'