Retool's development team, including Theodor Marcu, Kyle Conroy, and Jess Lin, shared their experiences and challenges in building a Source Control feature that integrates with GitHub. This feature was designed to aid developers in managing version control of increasingly complex applications within Retool. Users had previously struggled with manual versioning, leading to errors and inefficiencies. The team encountered various challenges, such as hitting Git tree object size limits and API rate limits, which prompted them to optimize their process of creating Git trees and managing API calls. By leveraging GitHub's API capabilities, such as the base_tree parameter and understanding the secondary rate limits, they were able to enhance the performance and reliability of their Source Control feature. These improvements have significantly accelerated commit operations and reduced errors, providing a more robust version control system for Retool apps.