Hi there, yes indeed, the site you're using is based on it. It's really just a tool for creating any kind of websites, but I'm afraid the documentation is a bit lacking at the moment, and it requires a db connection (I'm thinking of removing this requirement). The db setup seems to be the main stumbling block at the moment.
Please do raise an issue on github if you're having problems installing.
Caddy isn't really required to run a web server, I've been using it in front of the cms for the let's encrypt integration, but am considering just using the lego library instead and serving directly on the right port with https.
This is still at an early stage, but is being used in real apps (including this one), I'd welcome any feedback on it. It's intended to marry some of the attraction of a simple to use CMS like wordpress, with the flexibility of rails for building new apps quickly (even complex ones). I got tired of building the same building blocks again and again in various languages but disliked most of the current offerings.
It is more at the stage where tinkerers and those building sites in golang will be interested, rather than end users. If anyone has comments or questions on the setup, I'd be happy to field them here. It's intended to be a CMS which eventually rivals something like Wordpress for ease of use/themes etc, but to be significantly easier to extend (more like rails in that sense).
Sorry for the very late reply. Yes, it's both which could be a bit confusing! There's a framework that the CMS uses to get up to speed quickly, but the CMS I thought might be a more useful concrete example using it. Unfortunately I've not had much time to devote due to paid work, but am using it regularly and fixing bugs etc. It was made when Golang was still quite young as a replacement for devs moving from using a framework like rails to build custom apps, but I'd also like to see the CMS become as easy to use as something like Wordpress for end users.
The main stumbling block seems to be setup on windows and setup of the db, so I'm planning looking at eliminating those hurdles soon, which I hope will help people experiment with it.