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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.
It's not a reader, but this program spits out a list of all the manga you're following, and what the last chapter you read on each of them is. https://github.com/StoicSun/MD-Follow-list
Also, Neko lets you log in and import your following list, though it won't tell you your last chapter.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.