The document discusses development efficiency improvements made at REALITY Inc. to support their iOS app. As the engineering team grew from 8 to 26 people, the need increased for tools that allow parallel work without interference. Changes included migrating the CI/CD environment from Jenkins to Bitrise for increased capacity and flexibility, creating a mini-app for dynamically changing server connections to enable testing without rebuilds, and planning to split the iOS app into multiple modules. The goal is to enhance efficiency through measures like dedicated improvement weeks while continuing new feature development.