Comment HARNESS and I'll send you the full walkthrough, every prompt and the setup steps. I built a working invoice app for about 5 US cents with a free desktop app. It's called DeepSeek Harness. Open source, MIT licence, over 275,000 stars on GitHub. You install it, pick a folder and describe what you want. What I ran for the video: 1. An invoice maker. About 7 minutes, opens in my browser. 2. A spend meter. It added its own page to the app with no restart. It had 2 bugs of its own, and I caught them in the same session. 3. A team of agents. One of them checked every number the others wrote: 290 of 290. Everything came to about 62 US cents, all from the free starting credit. The app is free. Model use is paid per token. #deepseek #aiagents #aitools #vibecoding #buildwithai Rakhul - @00rakhul