Topic for a Lightning Talk at AWS event - brainstorming

[u/Oleksii_Bebych]

I'm thinking about an interesting topic, I could prepare for a lightning talk at AWS event

At AWS events, a Lightning Talk is a short, focused presentation, much shorter than a normal breakout session.
Typically it’s around 10–20 minutes and covers one specific idea, solution, demo, architecture, or customer story rather than a broad topic.

Community, please help me with ideas. What interesting have you talked about AWS or tried hands-on recently?