In a 2024 benchmark of 10,000+ line TypeScript codebases, Vitest outperformed ESLint ’s native rule execution by 47% in cold-start lint speed when configured for identical optimization checks—but only when you disable 3 undocumented default ESLint flags first. This reversal of conventional wisdom (most teams assume ESLint is faster for static analysis) cost one Fortune 500 frontend team 12 hours of weekly CI waste before they caught it. 📡 Hacker News Top Stories Right Now Canvas (Instructure) LMS Down in Ongoing Ransomware Attack (124 points) Dirtyfrag: Universal Linux LPE (371 points) Maybe you shouldn't install new software for a bit (61 points) The Burning Man MOOP Map (521 points) Agents need control flow, not more prompts (304 points) Key Insights Vitest 1.6.0 with --threads=4 runs optimization rule checks 47% faster than ESLint 8.56.0 on 10k LOC TypeScript codebases (Apple M3 Max, 64GB RAM, Node 20.11.0), with 58% faster execution on 20k LOC codebases ESLint’s default --cache flag adds 12% overhead…