I show you how to turn GPT-6 Astra in Codex into your own AI operating system and second brain, starting with an empty folder. We walk through my four Cs framework, the free skills I use to get set up, and how to connect your tools, build context, and keep improving your system.
You'll also see how I organize that knowledge into linked wikis and a 3D brain, plus how I think about choosing a model for everyday work.