I wrote one Blitzy prompt and received a working WhatsApp clone: real-time messaging, authentication, chat rooms, message history, the works… Here’s the proof. Blitzy is an autonomous software development platform for enterprise scale applications. In this video, I will show you how I rebuilt WhatsApp with the exact prompt, workflow and a complete demo of the final product. ⏱️ TIMESTAMPS 0:00 Intro: building WhatsApp from one prompt 0:14 What is Blitzy? 2:00 Setting up the project and writing the prompt 4:38 First results: reviewing the generated project 5:45 Getting the app running with Docker 7:34 First look at the WhatsApp clone 9:53 Fixing bugs: missing users and login issues 13:03 Testing real-time messaging 14:56 Verdict: what's finished, what's not, and AI's role in dev work Blitzy (Reverse engineer 100K lines of code for free): blitzy.com 📄Docs: Getting Started: https://docs.blitzy.com/quickstart Prompt Templates: https://docs.blitzy.com/templates Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

🧠 Let Notion Agent do your work for you at → https://ntn.so/hallden Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

https://rork.com

Check out Sevalla: https://sevalla.com/?utm_source=hallden&utm_medium=Referral&utm_campaign=youtube Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Check out https://rork.com

Try monday.com for free at: https://bit.ly/48MEvdY Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Check out Sevalla: https://sevalla.com/?utm_source=hallden&utm_medium=Referral&utm_campaign=youtube Watch me build this live: https://www.youtube.com/@CoderCal Stock footage: https://artgrid.io/Kalle-353717 Camera gear Main Camera: https://amzn.to/48cR80a B- Cam: https://amzn.to/48cR80a Main lens: https://amzn.to/49vuxga B-cam lens: https://amzn.to/49rnXY1 Main light: https://amzn.to/49xJRZX Fill light: https://amzn.to/3w9f0Et Softbox main light: https://amzn.to/3ukLiMq Microphone: https://amzn.to/49fbOWM Audio recorder: https://amzn.to/3waPsa9

Check out https://rork.com