Lightning is a technology that enables fast, proportionally priced bitcoin payments and is programmable, peer-to-peer money. However, most apps that use Lightning are just payment apps or wallets. The mobile internet has allowed people to disintermediate a lot of their interpersonal economic interaction, so why do we still have all these payment intermediaries? Lightning can-do P2P payments, but where are the next orders of utility magnitude going to come from? Connections are the key to utility, and developers are the key to connections. The key to scaling Lightning further is connecting it to other technologies, and developers are the ones who will be doing the connecting. The Breez SDK is an end-to-end, non-custodial, drop-in solution that lets a developer integrate Lightning into an app in a few hours without having to pay fees to third-party payment processors or become a payment processor themselves.