eslint-config-hardcore

The most strict (yet practical) ESLint config, bundling 51 plugins and 1376 rules for maximum code consistency and robustness. Current stable version is 49.0.0, released with a cadence of major updates every few months. It supports ESLint v8 (legacy config format) and TypeScript >=4.7.4. Key differentiators: it is the most comprehensive ESLint config available, covering React, Vue, Node, Jest, FP, performance, and more through modular sub-configs. Notably, v49 is likely the last major release supporting ESLint v8 and legacy config; future versions will target ESLint v9 and flat config, and may drop plain JavaScript support entirely.