Show HN: I made a quiz to help people learn Claude Code features (with macOS UI)

I also went a bit overboard on the UI. Some of the backstory: - I'd seen Boris's X thread of lesser known claude code features - I taught two of my non-technical friends some claude code features in person recently (I did a few AI tutoring sessions with friends, for fun and curiosity) - In the process of teaching others, I consumed some of the official educational content from Anthropic - I saw how many not well known features there are! - With a lot of Claude's help I made this. - The UI scope expansion was very fun to indulge. Let me know what you think!