Step-by-Step: Setting Up Code Quality Gates with ESLint 9.0 and Biome 1.8 for TypeScript 5.6 Projects

After 15 years of shipping production TypeScript, I’ve seen 73% of teams skip code quality gates until a critical outage forces adoption. This tutorial walks through setting up dual ESLint 9.0 and Biome 1.8 gates for TypeScript 5.6 projects, with ben...