Chapter 12

Launching a dApp

Launching a dApp means mainnet deployment, verified contracts, monitored infrastructure, and a plan for incidents. Testnet success does not guarantee mainnet safety under real economic attack or adversarial MEV.

Pre-launch checklist: audits completed, contracts verified with matching source, frontend environment variables pointed at production addresses, and alerting configured on contract events and TVL thresholds.

Post-launch: respond to incidents with transparent communication. Pause upgradeable contracts if an exploit is active. Document runbooks for key rotation and migration. Iterate on UX feedback — retention matters as much as launch-day hype.