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PackageKit
A D-BUS abstraction layer that allows the user to manage packages in a secure way using a cross-distro, cross-architecture API.
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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.
ALPM integration is not a direct Arch project and done by third party on an as available basis. It might get improvements it might not. It does look quite active https://github.com/PackageKit/PackageKit/commits/main/backends/alpm FWIW but in general Arch isn't really designed with these things in mind. The other bigger distributions also invest/used to invest a lot of time for package descriptions and the like while explicitly and primarily relies on the appstream database for information which may or may not be up to date.