code: function chrootSpawn(command, argv, opts, callback)
  {
    argv = [opts.uid, opts.gid, command].concat(argv)
  
    const options =
    {
      cwd: opts.cwd,
      env: opts.env,
      stdio: 'inherit'
    }
  
    proc.spawn(`${__dirname}/chrootSpawn`, argv, options).on('exit', callback)
  }
docs: Exec a command on a `chroot`ed directory with un-priviledged permissions
  
  @param {String}   command Path of the command file inside the home folder
  @param {String[]} [argv]  Command arguments
  @param {Object}   [opts]  Extra options
  @param {Function} callback