Show HN: Kyushu – A self-hostable WASM sandbox for JavaScript workers

Software Development, Backend & APIs, Web Development & Frontend(kyushu.dev)view on HackerNews

WebAssemblyJavaScriptTypeScriptCloudflare Workersself-hostablesandbox

Author: le_chuck

Date: 6/7/2026

Article Summary:

Kyushu is an open source CLI that allows developers to write JavaScript or TypeScript handlers, build them into WebAssembly binaries, and run them anywhere without Node.js, Bun, or Docker.