Shakapacker

Shakapacker is the official, actively maintained successor to rails/webpacker that integrates Webpack v5+ (or Rspack for 10x faster builds) with Rails for managing app-like JavaScript modules. Version 10.0.0 requires Node >=20 and supports Rspack v2, esbuild, and SWC loaders. Released by ShakaCode with regular cadence (v9.6.2 latest stable, v10.0.0 recent), it provides a robust Ruby gem and npm package for configuration, asset manifest generation, and development server integration. Key differentiators: native Rspack support, semantic config diffing (bin/diff-bundler-config), and compatibility with jsbundling-rails alternatives. Ships TypeScript types.