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A developer built a basic web browser from scratch in 72 hours using Rust with zero third-party dependencies, collaborating with an LLM agent (Codex). The browser renders HTML and CSS across Windows, macOS, and Linux, totaling ~20K lines of code. The project demonstrates that one human working with one AI agent can be more effective than deploying hundreds of autonomous agents, emphasizing the importance of human coordination in AI-assisted development.

One Human + One Agent = One Browser From Scratch

Day 3 - Polish & Cross-platform (+ day 4)

<p>Awesome post! I am currently teaching myself HFT Development in Rust with OpenCode. I am learning a bunch in a short amount of time. I might be doing something similar to this in the coming days as well. Not necessarily a browser but something in the same spirit. This is very inspiring.</p>
