Unity - A marriage plugin

For now you could use a small script made for KtSkript to retrofit a new permission node:

Untested

registerListener<SendCommandEvent> {
  val cmd = "$command $arguments".trim()
  if (causedByPlayer && " " in cmd) {
    val splits = cmd.split(" ")
    if ((splits[0] == "unity" || splits[0] == "marry") && (splits[1] == "tp" || splits[1] == "teleport")) {
      if (!causingPlayer.hasPermission("my.very.custom.permission.node")) {
        cancelEvent()
      }
    }
  }
}