100% Agree about any non trivial retool immediately becoming a mountain of tech debt. We use retool extensively and have put a lot of effort into making a workflow that is vaguely manageable, but it's still pretty bad. And once you start using custom components it's even worse. It's also an incredible resource hog.

Still, it lets you churn out working UIs and mini apps really fast so it's very hard to stop using it once you've started!