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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.
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picocli
Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.
I would recommend https://github.com/ajalt/clikt which is somewhat similar to click from Python world, and is written in Kotlin and for Kotlin, in contrast to Java's picocli
What about the official command line parser from jetbrains? https://github.com/Kotlin/kotlinx-cli
Clikt is pretty standard for anything Kotlin but I personally much prefer picoCLI. It is Java and slightly more clunky but the documentation is insanely extensive, the developer ready to help you at any moment and there are lots of big projects using it (junit, spring, even including some Kotlin projects like Ktlint) so you're sure it's future proof.