Seems like you're trolling with your user you created less than 10 minutes ago... :D But here's a serious honest answer: OPA is the fundamental policy engine used by this tool to write and enforce policies. It does not, however, offer the ability to abstract, control, and manage permissions through a UI. Rego code isn’t easy to write, and managing this with OPA only still leaves 100% of the work on the dev side. The idea here is to allow your end users (Which, a lot of the time, are not technical at all) to manage permissions without having to write code, and without the devs having to build a UI that allows them to do so.