Deduplication at Scale: Building Efficient Version Control Like GitHub

As projects grow in complexity, storage efficiency becomes a critical challenge for developers building collaborative tools. This article reveals how blob-based storage architecture with content deduplication—storing identical file contents only once while creating multiple references—can reduce storage overhead dramatically. By separating metadata from actual content, you can support unlimited versions and forks without traditional file duplication costs, enabling scalable version control systems similar to GitHub's approach.