wtf is startup-cto-handbook?

The Startup CTO's Handbook is exactly what it sounds like: a book written for people who lead software engineering teams at early-stage companies. It covers the leadership, management, and technical challenges that come with the territory. What makes it unusual is that the entire book is openly available here for anyone to read, and readers are encouraged to suggest edits, report problems, or even contribute new material for future editions. The content lives in a single markdown file, which is just plain text with some lightweight formatting. The author is still in the process of cleaning up the formatting after converting the manuscript from a word processor format, so it can look a bit rough in places. But the full text is there and readable. The book is also available to purchase in print and audio if you prefer that format. The primary audience is someone who has recently stepped into a CTO or engineering leadership role at a startup and needs practical guidance on everything from managing people to making technical decisions. A first-time founder who suddenly finds themselves running a team of engineers, or a senior engineer promoted into management, would find directly relevant advice here. Rather than learning through trial and error, they get a consolidated reference from someone who has been there. One notable thing about the project is the licensing model. You can copy, modify, and share the content freely as long as you keep the author's attribution attached and don't sell it. That means a company could adapt portions of it into internal training material, or a reader could create a derivative version tailored to their own organization's needs, all without asking permission.