Rspack Best Practices

Apply these rules when writing or reviewing Rspack projects.

Configuration

• Use rspack.config.ts and defineConfig
• Define explicit entry values for multi-page applications
• Keep one main config and branch by process.env.NODE_ENV only when needed
• Keep rule conditions narrow and explicit (test, include, exclude, resourceQuery)
• Prefer built-in Rspack plugins/loaders over community JS alternatives when equivalent features exist

CLI

If @rspack/cli is installed:

• Use rspack dev for local development
• Use rspack build for production build
• Use rspack preview only for local production preview