Howdy folks,
João's Tech is built on Flarum's community software (or like we use to call it back then: a forum).
Flarum is a modern, fast & free community software, that you can install in a straightforward manner on your VPS -- that's what I did for João's Tech and Cosmo Crafter's Forum. It is indeed fast. Give it a try yourself. You can find the installation instructions here (Github/Flarum).
I hope you enjoy this software as much as we do.
...and: Thank You Flarum Community for the great work 👍️ .