The 'Feature Clone + Twist' Challenge

Developers pick a single, interesting feature from a popular app (e.g., Instagram's story viewer, Spotify's playlist creator, Notion's block editor). They then try to *clone* just that feature using their preferred tech stack. The 'twist' is they *must* add one unique, personal improvement or creative extension to that cloned feature. This makes it practical (reverse-engineering, specific problem-solving) and impactful (shows understanding of existing systems + personal innovation).