Thanks so much for the answer -- I thoroughly enjoyed the OPA talks I've seen[0][1]. I apologize for mistaking OPA as a netflix product, I think one of the first times I saw it was as it was being used by Netflix so I assumed it was one of their F/OSS projects or built by someone there.
Did you guys build your own engine? I took a quick look at the repo but don't see anything that looks like a datalog library in your glide package list.
Last but not least, thanks for making and open sourcing such an awesome tool! Will definitely be passing the word on about Styra[2], I had no idea there was a whole company/more efforts behind OPA. I plan on using OPA in a bunch of upcoming projects -- it looks like a fantastic, stable addition to the toolbox of people looking to build robust programs/services.
[0]: https://www.youtube.com/watch?v=XEHeexPpgrA