esbuild-plugin-valibot-env

An esbuild plugin that validates environment variables against a Valibot schema during the build process. Current stable version is 0.6.1 (released 2024). It allows catching misconfigured environment variables early by integrating schema validation into esbuild's plugin system. Key differentiator: uses Valibot's modular and tiny validation library instead of Zod or Joi, making it ideal for frontend builds. Requires esbuild 0.20–0.26 and Valibot ^1.0.0. Supports dotenv files, localized error messages, and optional value transformation.