Hello world, over the summer I built a JS engine and runtime. The next version has 100% ECMA test262 conformance, and a bunch of JIT work. npm i -g cruftjs
Learn more at https://cruft.sh

CruftCruft: the JavaScript engine, runtime, and ecosystem stack for your agentsRun code you don't trust, at scale, without trading away the ecosystem. Isolated compartments, timeouts that can't escape, a shared heap across threads, all of npm.