A fixed-syllabus series for Web3 beginners: wallets and keys, the account model and gas, Solidity and Foundry, contract interaction and security, testnet drills to mainnet deployment — no blockchain background required, from reading your first on-chain data to deploying your own contract.
Part 1 of the Web3 Dev: Zero to On-Chain series: what a blockchain actually is in programmer terms, why your private key literally is your money, which chain to learn on in 2026, the most expensive beginner mistakes, and a toolchain that lets you touch on-chain data without writing a line of code.
Part 2 of the Web3 Dev: Zero to On-Chain series: a one-way pipeline turns 12 English words into your on-chain identity — BIP-39 mnemonics, HD wallet derivation paths, secp256k1 and Keccak-256, the three generations of signing and their security grades, plus hands-on key generation, signing, and verification with cast.