You clearly have never worked anywhere close to payments :) Kidding aside, the regulations around anything that handles money are quite complex, and the liabil

You clearly have never worked anywhere close to payments :) Kidding aside, the regulations around anything that handles money are quite complex, and the liability issues mean that you'll spend a lot of time on getting it right, too. In theory, payment is super-easy. In practice, any payments solution that is not just a toy eats engineers for breakfast. Stripe is probably one of the leanest ones - and they have 400+ engineers, lean on existing infrastructure, and cover only 25 countries.