@samlambert what exactly makes it hard? Isn't it as simple as setting synchronous_commit=remote_apply or does planetscale have a custom strategy or are there other operational issues?

Just asking since I find it both the planetscale's engineering and its impact on competitive landscape very interesting.

you have to make sure you will never terminate these nodes, that you have all the operations maturity to cycle them responsibly, and resize them. I am sure they will get there one day but most people are still figuring out how to run databases on k8s so it's a long road.