I originally built fantastic11.com in 2008. The browser-based lineup editor alone took me several months to build. Here’s an old demo video from that time: https://www.youtube.com/watch?v=27_Bx4Z8nbE Over the years, I added a few smaller features, but as a father of three, I rarely had much time left for this side project. This week, I rebuilt the entire site in just a few days using Codex and a $20 subscription. What surprised me wasn’t only the speed. The new version ended up being much more complete than the original. The workflow still feels strange: I describe what I want, spend some time with my children or take care of things around the house, then come back to find much of the implementation ready to review. It’s a very different way of building software, and I’m still getting used to it. You can try the new version here: https://fantastic11.comI’d be happy to hear your feedback—on the site itself or on similar experiences rebuilding old projects with coding agents.