Johan, CTO at Embark here, feel free to shoot any questions about Rust, open source, rendering, or gamedev here.

When we started Embark 3 years ago it was one of our core principles to build games in a new more modern and open way, less massive monolithic closed source C++ repositories and building and working with an open community and modern language instead - and Rust with the wide and friendly ecosystem has been a huge motivation and core part of this. And feels great to be able to contribute back with our experiences, approaches, and concrete open source projects and contributions.