Boa is an experimental JavaScript engine written in Rust that supports over 90% of the latest ECMAScript specification. It includes a lexer, parser, and interpreter, and offers various crates for different functionalities. Users can run JavaScript code via a CLI or in a WebAssembly environment.

RustPython is an open-source Python 3 interpreter implemented in Rust, allowing integration of Python as a scripting language in Rust applications and enabling Python code execution in web browsers via WebAssembly. It aims to provide similar functionalities as other Python implementations like Jython and IronPython while benefiting from Rust's minimal runtime.

Nova is a JavaScript and WebAssembly engine developed in Rust, currently serving as an experimental project to explore its capabilities. Although it only passes about 77% of the test262 suite, ongoing development aims to enhance its functionality. Interested individuals can engage with the project through its GitHub repository or Discord server.

TrailBase is a fast, single-executable alternative to Firebase, featuring type-safe REST and real-time APIs, built on technologies like Rust and SQLite. It simplifies backend deployment for applications with minimal latency and includes built-in components such as an admin UI and authentication features. The software is open-source under the OSL-3.0 license, allowing flexibility for developers while ensuring community contributions.