Your brain was not built to track hundreds of ideas, articles, and conversations across dozens of apps. This book shows you how to build a personal AI second brain that captures your thoughts, organises them automatically, and nudges you about what matters each day. No coding required. No paid tools needed. Everything happens in a web browser using free AI tools like Claude and Google NotebookLM. Written by someone who built this system for himself first and documented every step along the way. By the end of your first week, you will have a working system that thinks with you, not for you.
Jake Cusack is the founder of Deepify Academy, where he teaches people how to build with AI without the hype or vendor lock-in. With over 20 years in the industry and working for an amazing firm, he learned that the best systems are simple, reliable, and under your control. He runs his entire workflow on local-first AI tools and has been maintaining a second brain system since 2020. His philosophy: start simple, add complexity only when needed, and never let your tools get in the way of your thinking. Based in London. Builds things that work.View all by Jake Cusack
