SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based).

SuperTokens.com

Hi,

I am using Next.js pages router and have initialised Supertoken in `_app.tsx` by using 
```
if (typeof window !== 'undefined') {
  initAuth();
}
```
before `export default function App...`

Inside `initAuth()`, I call the `SuperTokens.init` function. This all seems to work but we are using a build once deploy many approach and when I try to use env variables at runtime, they are not available at that level. Any insight on this?

i think you have to add the env vars during he build process itself for nextjs to pick it up. Im not too sure how nextjs env vars work, but this may be a better question to ask the nextjs community

Thanks. I think I have made a plan. Is that the best place to have the `SperTokens.init` function?