@t3-oss/env-nextjs
The Next.js package comes preconfigured for Next.js and also enforces some extra rules by default to make sure you have out-of-the-box compatibility in all different Next.js runtimes.
@t3-oss/env-nuxt
The Nuxt package comes preconfigured for Nuxt, and fills the runtimeEnv option automatically. All you need to do is define your schemas!