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Show HN: DeltaGlider – Store 4TB of build artifacts in 5GB

11 days ago
https://github.com/beshu-tech/deltaglider
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  • #delta-compression
  • #s3-alternative
  • #storage-optimization
  • DeltaGlider is an S3 replacement that achieves 99.9% size reduction for versioned compressed artifacts, backups, and release archives using binary delta compression (xdelta3).
  • Case study: Reduced storage from 3.96TB to 4.9GB (99.9% compression), saving $1,120/year to $1.32/year.
  • Install via pip, uv, or Docker. Supports AWS, MinIO, and custom S3 endpoints with encryption always enabled.
  • Key features: Automatic delta compression, S3 compatibility, CLI/SDK/GUI support, and data integrity checks.
  • Ideal for software releases, DB backups, and versioned binary data. Not suitable for multimedia or small files.
  • Migration tool available to compress existing S3 data with resume support and progress tracking.
  • Open-source (MIT license), battle-tested in production, and welcomes contributions.
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