The Webbrowser is the bastion, the holy grail of web development and one of the biggest projects in the Rust ecosystem focusses exactly on that. If Rust achieves to run a browser engine, be used to write server code while also being used as the frontend-development language within the browser, then it will truly be the language of the web like no other.
Web Rendering Engine: Servo
Not yet published on crates.io but steady and continuously developed by Mozilla.
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