How can I build a multilingual AI chatbot using Transformers?

i was looking in to this subject before with a project involving a game engine. not sure how much help it will be but i discovered that API language libraries exist that do this, and that a good approach is to treat each language like models, and organize it so that you can always add new modules in the future, that way your chatbot capability can be expanded in the future.

*so you would build your chatbox and connect the language APIs kinda like a tool call.

though it also occurs to me that there may already be Expandable Language AI Chatboxes availible***