Supabase UI - React component library for enterprise dashboards
MRN - A Material Design style React Native component library.
Refine - A React Framework for building internal tools, admin panels, dashboards & B2B apps with unmatched flexibilty.
Patternry - A tool for building living UI libraries
Blitz.js - Rails-like framework for React apps, built on Next.js
pttrns - iPhone and iPad user interface patterns