This is an awesome idea and it looks like you guys are executing on it beautifully. Congratulations! Out of curiosity, what kind of customers/teams are asking you for gRPC support? Is this coming from your enterprise customers or from smaller teams?
https://news.ycombinator.com/item?id=19612577
It's usually small teams, individual devs who want gRPC. Even if it's within a large company, it's almost always one technical person.