Hey Matt! I'm referring to the ability to change the Caddy config from an API that is itself proxied through Caddy. Here's the issue which you very helpful in[0].
Ultimately I realized that most of what I needed from Caddy was really just certmagic, which has worked flawlessly since I got it set up. Plus I need the final product to compile into a single binary. Since my custom reverse proxy only took a few lines of code, I haven't worried too much about it. But there are a few features which I'll have to integrate eventually.
If I end up seeing myself headed down the path of making a full-fledged reverse proxy, I'll reconsider trying to implement my project as a Caddy plugin.