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If you want to interact with Java libraries, but don't need the Haskell program itself to run on the JVM, inline-java is probably your best bet at the moment.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Dataflow is Google's implementation of a runner for Apache Beam jobs in Google cloud. Right now, python and java are pretty much the only two options supported for writing Beam jobs that run on Dataflow.
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The core of eta-lang was codec-jvm (https://github.com/rahulmutt/codec-jvm) and i think the work done there and in eta-lang itself could be put to good use.