phpBB 3.2 Integration

Hi, I am looking to make a phpBB 3.2 forum that would be embedded into GRAV. How would it work? I am fairly new to site managing in general, but I have read my fair share of documentation. Where would I place the phpBB 3.2 files so that GRAV can read them and integrate them in hrefs like the navbar/navigation buttons/etc?

If anyone has done this successfully and wouldn’t mind giving me some tips on how to accomplish this successfully, I’d be very grateful!