
A DeFi protocol is much more than just code. It’s the design, architecture, and interaction between multiple smart contracts, each with a specific responsibility. It’s also about translating economic mechanisms into Solidity: How can these operations be implemented correctly and as gas-efficiently as possible? Then comes security: Reentrancy, MEV, sandwich attacks, oracle manipulation, access control, and much more. Building DeFi means combining software engineering, economics, and security.
