Amazon + Shopify?

I’m a current Amazon seller moving from RA to PL and about to enroll in Brand Registry. My long term plans include expanding to Shopify (since being Amazon-only is a huge risk IMO) and I’m looking into if I should start Shopify sooner. For Brand Registry, I’ll need a website, so should I just go with Shopify Lite or Basic and use the Amazon integration? I was reading some articles about Shopify + Amazon and I’m pretty confused about what that would look like. A Shopify (or other) site that links to Amazon would be ideal right now so that I’m not adding an additional fulfillment channel or managing sales tax.