omi by BasedHardware

Deliver UI for Web and Mobile platforms without taking care about complexity on how to style there. It's based in React and Flutter and uses the core of CSS specification to allow you to write cross platform styles. Maintained by skynexui on GitHub, where it has earned 647 stars from the community.

Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product. Maintained by openreplay on GitHub, where it has earned 12,949 stars from the community.

Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more. Maintained by appwrite on GitHub, where it has earned 57,352 stars from the community.