These forums are only possible thanks to Flarum. I've experimented with Forum software over the years, most recently Discourse, which you've probably seen while seeking out tech support from one company or another.
Flarum is really extendable and looks pretty good out of the box. I really don't want to spend six months fucking around with CSS to make MillMint Forums look like they belong in 2022.
This Forum is hosted for free by freeflarum.com, a service that looks too good to be true. The web still has a lot of ways to build things for free, which is cool.
I'll briefly list the services that make this forum work. None of them cost anything, other than the $15 or so I paid for the millmint.net domain.
With just a couple hours of googling and tweaking, here we are. A fully-functioning, slick-looking forum for my project. Let's see how this goes!