I worked at GitHub up until last October. I’m keenly aware of the challenges of maintaining it, and how much hard work the teams puts in.
However I think it’s hard to ignore in light of recent issues that there has been a large amount of attrition in the last year or so, specifically to PlanetScale by some of the most senior/database focused engineers.
Edit: just noticed that you’re the CEO of PlanetScale. I don’t mean this as a slight against you or GitHub or the folks that moved. I genuinely do just think that the number of people who shifted over left GitHub with a fairly large experience and knowledge gap. I don’t think anyone is to blame, it’s just an outcome of organic evolution and changing of a technical organization.