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osxphotos
Python app to work with pictures and associated metadata from Apple Photos on macOS. Also includes a package to provide programmatic access to the Photos library, pictures, and metadata.
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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.
I'm the author of the free/open source tool osxphotos which provides several utilities fo working with Photos and exporting your photos. You can use the batch-edit feature to automatically add the album name as a keyword and I believe keywords are shared across users. (I don't use shared libraries so can't confirm this). I am working on a feature to then automatically re-create the albums from the keywords on the target library. For now the keywords is a partial work around.