Sounds good. Do you think it will be something complicated that might take some time?

Yeah, so if they register on my site, they will be able to login to the forum with those details

I have created a website using Python Flask which has its own registration and login system. I'm using SQLite3 for the database. Is there a way to integrate that with a FlaskBB forum? And how would I have the forum installation at a different URL (http://domain.com/forum)?