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

Source: Hacker News

A Self-Hostable Wasm Sandbox for JavaScript Workers

Ever wanted to run a Cloudflare Workers-style handler, on a VPS or anywhere, without Node.js, Bun, or even Docker?

curl -fsSL https://kyushu.dev/install | bash

Get started View on GitHub

What is Kyushu?

Kyushu is an open source CLI that lets you write a JavaScript or TypeScript handler, build it into a self-contained WebAssembly binary, and run it anywhere with one command - kyu.

• No Node, Bun, or Docker - just a single binary
• Cloudflare Workers-style API - familiar fetch handler
• Self-hostable - runs on a VPS or anywhere
• WebAssembly sandbox - isolated from the host

Read docs

What people are saying (probably)

“But…why?”

JD

John Doe

Node.js Developer, NaN years experience

“I like Docker”

JS

Jane Smith

Senior YAML Engineer

“Have you heard of Bun?”

BJ

Bob Johnson

AI prompt master chef