📦 obuild 😯

✅ Zero-config ESM/TS package builder.

Powered by oxc, rolldown and rolldown-plugin-dts.

The obuild project aims to be the next-generation successor to the current unbuild.

• 🌱 Fresh rewrite with cleanups and removal of legacy features.
• 🚀 Uses oxc and rolldown instead of rollup and mkdist.
• 👌 Strict ESM-compliant imports with explicit extensions.
• 🔒 Types are built with isolated declaration constraints.
• 🪦 No support for CommonJS output.

Some differences are not easy to adopt. Developing as a standalone project allows for faster progress and dogfooding in real projects.

👀 See this issue for more explanation about the difference between obuild, unbuild, tsup, and tsdown.

Usage

CLI:

# bundle
npx obuild ./src/index.ts

# transform
npx obuild ./src/runtime/:./dist/runtime

You can use --dir to set the working directory.

Programmatic:

import { build } from "obuild";

await build(".", ["./src/index.ts"]);

Note

Auto entries inference similar to unbuild coming soon (#4).

Currently used by

• 📦 obuild
• 🌳 rou3
• 💥 srvx
• 🕊️ unenv
• 🕰️ omnichron
• [...add yours...]

Proof of concept

Important

This is a proof-of-concept project.

Features are incomplete, and output behavior may change between versions.

Feedback and contributions are very welcome! If you'd like to make changes with more than a few lines of code, please open an issue first to discuss.

License

💛 Released under the MIT license.