This document introduces ink!athon, a tool for scaffolding decentralized applications (dApps) built with Substrate smart contracts. Ink!athon provides a monorepo project structure containing packages for smart contracts built with Rust and ink!, and a frontend built with Next.js and TypeScript. It includes utilities like useInkathon that simplify interacting with contracts. The goal is to save developers time by providing boilerplate code and abstractions for common tasks. Demo projects are available on inkathon.xyz and support is provided on Discord and Telegram.