Diving into the depths of Widevine L3

I looked a bit into Widevine L1 implementations during some TrustZone research and actually have been able to obtain an L1 keybox, though not the way one might think ;)

The tease is real. Impressive work, I'd love to pick up this kind of reversing and hacking skill, but it seems to require a lot of time that I do not have on my hands right now.