Squarespace domain nameservers working with Vercel domain nameservers

We're currently trying to figure out how to use custom domain nameservers with the squarespace nameservers. Right now we use Vercel to manage our website but how we went about plugging in our Vercel nameservers doesn't allow the Squarespace nameservers to also be active. This causes all of our Google verification dns records to be voided when we activate our website. How do we go about mapping our dns so that we can activate Vercel and our dns records to work simultaneously?

Hopefully this will help:

https://github.com/orgs/vercel/discussions/1794