Vercel Server environment variables being populated

[jacobsamo]

Pages to Investigate

https://github.com/t3-oss/t3-env
https://github.com/jacobsamo/Mixie/tree/dev

Steps to Reproduce

I am currently using using T3 Env for type safe environment variables however on vercel it seems that the server environment variables aren't pulling in for some reason. it builds fine in locally and builds fine using the Vercel CLI using vercel pull and vercel build.

I have checked that my environment variables are correct in my settings and they are and are set for the right environments.
This is the error I see:

mixie/website:build: $ next build
@mixie/website:build: ❌ Invalid environment variables: {
@mixie/website:build:   SUPABASE_URI: [ 'Required' ],
@mixie/website:build:   UNSPLASH_SECRET: [ 'Required' ],
@mixie/website:build:   UPLOADTHING_SECRET: [ 'Required' ],
@mixie/website:build:   UPLOADTHING_APP_ID: [ 'Required' ],
@mixie/website:build:   SUPABASE_SERVICE_ROLE: [ 'Required' ],
@mixie/website:build:   GOOGLE_AI_API_KEY: [ 'Required' ],
@mixie/website:build:   UPSTASH_REDIS_REST_URL: [ 'Required' ],
@mixie/website:build:   UPSTASH_REDIS_REST_TOKEN: [ 'Required' ]
@mixie/website:build: }
@mixie/website:build:  ⨯ Failed to load next.config.mjs, see more info here https://nextjs.org/docs/messages/next-config-error
@mixie/website:build: 
@mixie/website:build: > Build error occurred
@mixie/website:build: Error: Invalid environment variables
@mixie/website:build:     at onValidationError (file:///vercel/path0/node_modules/@t3-oss/env-core/dist/index.js:29:15)
@mixie/website:build:     at createEnv (file:///vercel/path0/node_modules/@t3-oss/env-core/dist/index.js:35:16)
@mixie/website:build:     at createEnv (file:///vercel/path0/node_modules/@t3-oss/env-nextjs/dist/index.js:12:12)
@mixie/website:build:     at file:///vercel/path0/apps/website/env.mjs:4:20
@mixie/website:build:     at ModuleJob.run (node:internal/modules/esm/module_job:222:25)
@mixie/website:build:     at async ModuleLoader.import (node:internal/modules/esm/loader:323:24)
@mixie/website:build:     at async loadConfig (/vercel/path0/node_modules/next/dist/server/config.js:698:36)

What else have I tried

I tired removing the package and running with normal process.env however still no luck. environment variables are still not being populated

the repo can be found here: https://github.com/jacobsamo/Mixie/tree/dev

[TobeBetterV]

Are you still troubled by this issue? The last link of your problem details is private.

[jacobsamo]

I am still experiencing the issue, Just changed the links but here is the link to dev as it seems to be happening on all environments https://github.com/jacobsamo/Mixie/tree/dev

[jacobsamo]

Moved to discussion: https://github.com/orgs/vercel/discussions/7460 which provides more detail and description

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