I hope plugin. js (this file is used to describe the loading of plug-ins in the game) is still unencrypted, which means that the MOD is allowed to exist while protecting the source code.
Depending on your settings, you should be able to still support mods. If the game's files are simply packed, it's pretty easy to add this via a mod launcher. If the source code is compiled, modifications to the mod plugin and providing a tool to prepare the mod is required. I'd be happy to provide some custom tooling for you.
