Chameleon templates, modernized: chameleon-rs

Chameleon-rs is a Rust implementation of the Chameleon template engine for Python web apps, offering faster rendering, async support, and support for free-threaded Python. It aims to modernize templating by adding features like partial templates and Markdown support while ensuring compatibility with existing Chameleon templates. Switching from Chameleon to chameleon-rs is straightforward, and performance improvements can reduce median response times by around 20%.