Legal
Open-source licenses
POSRex stands on the shoulders of great open-source software. Thank you to the maintainers.
June 2026
Core
Electron, React, TypeScript and Node.js — the foundation POSRex is built on.
Data & sync
better-sqlite3 for the local database, plus our own encrypted cloud-sync layer.
Interface
Tailwind CSS, Motion and Lucide icons power the app and this website.
Full list
Every dependency and its license is bundled with the app under Help → Open-source licenses. We honor each license's terms.