Domain and subdomain swap with Squarespace and Shopify

Technical Q&A
1

I created a new store in shopify to replace the store I had on Squarespace.

It’s on a subdomain https://shop.buriedinwork.com.

I manage my DNS through Squarespace.

I would like the shop subdomain to be the primary domain, with the current Squarespace site shifting to a subdomain, https://resources.buriedinwork.com.

Three questions:

  1. How do I go about this without blowing everything up? Email is through Google workspace, through Squarespace.

  2. Is it possible to create a universal redirect for all the URLs on the existing Squarespace? There’s no way I’ll be able to update every page manually. There’s a lot of customization and pages that I don’t believe will transfer well to Shopify.

  3. What else should I keep in mind if I try to make this switch? I’m I about to kill my SEO?

Thanks!