100 Days of Solana — Days 1–4: Keys, Lamports, and My First Browser Wallet

I've been doing the #100DaysOfSolana challenge and I want to share what the first four days looked like — because the mental shift from Web2 to Web3 hit me harder and faster than I expected. Day 1 — Generate a Keypair and Get Devnet SOL I generated my first Solana keypair using the CLI and airdropped free SOL to it on devnet. There was no sign-up form. No email. No password. My entire identity on the network is just 64 bytes — a private key and the public key derived from it. That's it. The bloc