How do I get shared authentication between multiple Next.JS applications?

[dBianchii]

Hi everyone, I have a monorepo here: https://github.com/dBianchii/kodix-turbo

And I want to have multiple different Next.JS application, and all of them should point to @kdx/kdx (my main master backend) to authenticate.

I have authentication working perfectly fine with Next-Auth V5 Beta. (I have a separate @kdx/auth package in there, which is being utilized to full extent by the main @kdx/kdx nextjs app).

I want to understand: how can I get authentication working on different NextJS environments with a shared authentication between them?

[leongieser]

For anyone coming across this in the future have a look at

https://github.com/typehero/typehero/tree/main/packages/auth/src

They used "5.0.0-beta.4" to authenticate for the web app and the admin panel