new JavaScript engines & runtimes

 saghul/txiki.js: A tiny JavaScript runtime @GitHub (C)

txiki.js is a small and powerful JavaScript runtime. It targets state-of-the-art ECMAScript and implements many web platform features.

It's built on the shoulders of giants: it uses QuickJS-ng as its JavaScript engine and libuv as the platform layer

awslabs/llrt: LLRT (Low Latency Runtime) is an experimental, lightweight JavaScript runtime designed to address the growing demand for fast and efficient Serverless applications. @GitHub, by Amazon