ZomboDB scratches an itch in a way I find fascinating, though I have yet to do more with it than shoehorn it into a prototype that was a bit square-peg-in-a-round-hole. It is in my catalogue of technologies I hope exploit someday. And I hope you're enjoying the work and making some $$$ too.

While I'm here might I ask, are you finding the hosted PostgreSQL services (AWS, Azure, etc.) growing or shrinking your market opportunities? Also, does it play nice with Citus?