There are a tonne of tools, actually. The one I've been keeping in my back pocket is a "theme" (if you can say that) for hugo-based static sites. Something I've noticed (though I haven't updated it in a while) is that it doesn't generate an Atom feed so link aggregators won't accept your submissions.
Hugo-2-Gopher-and-GeminiGenerally speaking though, a gemini server is super easy to use (if you don't need reverse proxying!) because there are just a tonne of servers available and the only formatting available is whatever gemtext gets ya. In other words: its way simpler to host a good looking capsule than it is to host a good looking http site.
Definitely be careful if you've got censorship laws in place that can affect you though.
As far as starting here, yeah, this place is pretty chill.