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httm
Interactive, file-level Time Machine-like tool for ZFS/btrfs/nilfs2 (and even actual Time Machine backups!)
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Check out httm (https://github.com/kimono-koans/httm) as it should help you with what you want assuming you have the snapshots all setup.
NOTE:
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Hence, a higher number means a more popular project.