How to Integrate iubenda’s Cookie Consent Banner on a Multi-Domain Website?

Hello everyone!
I’m working on a project with multiple domains, each targeting different countries (for example, a UK site, US site, and EU site). I’ve signed up for iubenda and am wondering what the best way is to implement the cookie consent banner across all of these sites while staying compliant with each region’s laws (GDPR, CCPA, etc.). Does anyone have experience with setting this up for multiple domains? Any advice or tips would be greatly appreciated!

Thanks in advance!