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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 supports 217 languages, according to Hyperglot. If you ask me, that's reasonably good for a version 1.0 release of an open source font.
Czech is not one of the 217 languages supported, but you can post an issue if you want to request it.
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.