Template engine & HTML5 entities

I've started looking at replacing a custom web framework built on top of python with something written in Rust. I'm currently planning on developing a proof of concept based on Rocket.

With a candidate for the actual HTTP transport, what remains is some means of generating HTML5. There appear to be quite a few template engine crates on crates.io, but I'm wondering if there are any that are known to be good for HTML5 (primarily thinking about entity translations). Also wondering if there's any template engine that is known to be noticeably memory efficient (the framework is primarily used in embedded systems with limited resources, and we're willing to trade some performance for tighter memory constraints).

Apparently Tera is part of Rocket, so I'll go with that. :slight_smile: