Incompatible with app router

[arpitgupta1214]

I used the same code and converted to use app router instead of pages router.
Here is the code I am using

It works in the dev mode, but the build is failing.
@standard-crypto/farcaster-js seems to be the issue, as soon as I import it, build start to fail.
Any suggestions on this, any alternate clients that can be used?