Worked on the sourcebot-dev/sourcebot repository to enhance backend reliability by addressing resource exhaustion during large-scale Git repository synchronization. Focused on backend development using Node.js, JavaScript, and TypeScript, the developer implemented concurrency control with the p-limit library to limit simultaneous sync operations. This approach stabilized repository synchronization under high load, reducing the risk of incidents and improving system throughput. The solution involved careful resource management and robust testing, ensuring safer scaling and better stability during peak usage. By fixing a critical bug, the work enabled the system to handle mass repository syncs more efficiently and prepared it for future growth.