Three years ago, we started Nango: Developer infrastructure for product integrations.Today, it powers integrations with 500+ APIs for hundreds of SaaS and AI companies.Our journey to get here was anything but linear.For this post we gathered some of our most unexpected lessons learned. We hope they help other teams who are also building developer infrastructure products.1. Great abstractions are the key to great infrastructure productsAs developer infrastructure, our abstractions are our product...