Cynthia Chen vibe coded an app in two months with no formal training. She learned about how to better prompt AI — and that jobs like hers are safe.

What started as a fun idea to collect dog photos turned into a full-fledged iOS app. A product designer with no formal engineering training built it from scratch through vibe-coding. Cynthia Chen ...

Jack Dorsey used Goose, Block's AI code editing tool, while developing his Bluetooth mesh messaging app Bitchat. Dorsey said he developed the app over a weekend. He's released a beta version.