It's one thing to know (abstractly) that capabilities solve the problem, I think what often ties people up is how to get started. There aren't a lot of projects that we can point at to say, "this is how you do capabilities in a web service", "in a modern mobile app", or "in an agentic system". Like most of you, I've tried building examples a few times and always get snowed under by other work, I just wanted to say that I appreciate efforts to make secure systems an accessible topic.