Where to start? A wild guess: - A/B testing capabilities - Different features per country/region - Different payment methods per country - ... I mean it's

Where to start? A wild guess: - A/B testing capabilities - Different features per country/region - Different payment methods per country - ... I mean it's like e-commerce, when you stay in a single country, things are easy. When you go international, wild sh*t happens to cover all the spectrum of scenarios and respect the laws in place, while keeping it simple enough to maintain for devs.