I find it great that you've opted for Lua over JS. I see far too many projects with JS shoveled in where Lua would be a better, cleaner, and simpler fit.
I'm very glad to hear that. I was expecting a lot of people to be disappointed that it's not JS, but honestly I think Lua is a lot cleaner and simpler, and it is just so small and easy to integrate with in C, it's really hard not to use it in a project!
I'm one of those people still using Zephyros, mostly so that I could keep using beer (https://github.com/v-yarotsky/beer). I skipped Phoenix but might give Hydra a try (knowing no Lua though) just to see what you've been doing with it.