RIBs is the cross-platform architecture framework behind many mobile apps at Uber. The name RIBs is short for Router, Interactor and Builder, which are core components of this architecture. This framework is designed for mobile apps with a large number of engineers and nested states. To get started with RIBs, please refer to the RIBs documentation. This describes key concepts on RIBs, from what they are for, their structure and common use cases.