Multiple Currencies for Prices and Checkouts

Site URL: https://www.xystema.com/

I am struggling to find multiple currency for my website. I'd like that my service prices be displayed in the currency of my customers (detected via geolocation).

I found this resources shared by paul2009 (https://sf.digital/squarespace-multicurrency) but it for squarespace 7.0. I am not sure if this will work with my 7.1.

I will appreciate any advise here. Thank you and keep safe!