Once UI monorepo

This monorepo hosts the official Once UI package and its internal development sandbox. It is designed for testing, development, and contribution—not for production deployment.

Developer notice

It includes:

• packages/core: the published @once-ui-system/core package
• apps/dev: a local sandbox app wired via symlink for live development

This setup is intended for contributors and maintainers. If you're building a real project, we recommend using:

1. Once UI Starter
2. or install via your package manager:

npm install @once-ui-system/core
# or
yarn add @once-ui-system/core
# or
pnpm add @once-ui-system/core

For contributors

Fork this repo, install dependencies, and run the dev test app:

pnpm install
cd apps/dev
pnpm dev

Documentation

Start here: docs.once-ui.com.

Creators

Lorant One: Portfolio / Threads / LinkedIn

Zsofia Komaromi: Portfolio / Threads / LinkedIn

Join the movement

Join the Design Engineers Club on Discord. Build with intention. Share with integrity.

Feedback & Bugs

Found a bug? Report it Got an idea? Submit a request

Support us

Once UI is an indie project. Sponsor us and get featured on our site!

License

Distributed under the MIT License. See LICENSE.txt.