Ask HN: What are your frustrations when doing 3rd party integrations?

For me, the whole process of taking the time to read the documentation, picking a client library for your language, testing the integration, managing keys for different environments, and deploying to production is frustrating. I just want to get back to my core app, and not spend time doing integrations for business operations. Context: Stripe now supports all sorts of payment workflows besides the simple one-time credit card payment, such as subscriptions, metered billing, and transactions in a 3-sided marketplace (like DoorDash), which can get complicated. I was thinking about building a low-code payment workflow builder--it helps you integrate with Stripe to gather payment from customers. Before going too much further, I wanted to start talking to people to see that I'm on the right track. What are your frustrations and experiences with integrating payment workflows? Is this something that is a problem that you'd like taken care of for your next project(s)? I plan on posting updates and notifying people about the beta at the bottom of this substack: https://paymentworkflowbeta.substack.com/p/coming-soon