We started working on Cerbos[0] over 3 years ago. Permission management across applications is difficult, especially as the code base grows: you have hundreds of users, many services in different languages, and several environments. Hardcoded access control rules tangled with business logic make every new role and permission change a hassle to write, test, and maintain.

Cerbos PDP[1], is an open source, self-hosted, and a stateless solution to solve access rule consistency in a scalable manner across the entire code base. It truly scales horizontally and is used by hundreds of companies. Check out how Cerbos works[2].

Cerbos also has a playground[3] which lets you author policies and in real time see their impact in the application you are developing.

I would love to hear your feedback.

PS: We just surpassed 3333 stars!

[0] https://cerbos.dev [1] https://github.com/cerbos/cerbos [2] https://cerbos.dev/how-it-works [3] https://play.cerbos.dev

Disclaimer: I am the co-founder of Cerbos.