*“Not your keys, not your coins.”* Why Self-Custody Matters More Than Ever“Not your keys, not your coins.” It’s a phrase you’ve probably heard before, but let’s break down exactly why it’s not just a meme — it’s a warning. This chapter is about the foundation of true crypto ownership: self-custody. We’ll cover what wallets are, how they work, the difference between custodial and non-custodial solutions, and why choosing the right one might be the most important decision you make in this space...