“Nestri is an open-source, self-hosted Geforce Now alternative with Stadia’s social features.”

“Our goal is to develop a comprehensive self-hosted cloud gaming solution for your home server.”

https://github.com/nestrilabs/nestri

Maybe https://nestri.io/ is similar enough to what you’re looking for?

Rust was originally created by a Mozilla dev as a hobby project. Also, the Mozilla rust team was fired in 2020 during a “restructuring”.

Sidenote: A similar app is https://squoosh.app/