Frontend Playbook

What You Probably Got Wrong

"I'll use yarn chain." Wrong. yarn chain gives you an empty local chain with no protocols, no tokens, no state. yarn fork --network base gives you a copy of real Base with Uniswap, Aave, USDC, real whale balances — everything (verified addresses: addresses/SKILL.md). Always fork.

"I deployed to IPFS and it works." Did the CID change? If not, you deployed stale output. Did routes work? Without trailingSlash: true, every route except / returns 404. Did you check the OG image? Without NEXT_PUBLIC_PRODUCTION_URL, it points to localhost:3000.

"I'll set up the project manually." Don't. npx create-eth@latest handles everything — Foundry, Next.js, RainbowKit, scaffold hooks. Never run forge init or create Next.js projects from scratch.

Fork Mode Setup

Why Fork, Not Chain