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wh-kafka-connect-jslt-transform
Custom Kafka Connect SMT implementation that allows to use JSLT (https://github.com/schibsted/jslt) as transformation logic
https://github.com/kiwix/kiwix-android haven’t been there for a few years now but happy with what I did and taught. Introduced kotlin to a pure java environment and it was so much better every time
https://github.com/varabyte/kotter - A library for writing dynamic console applications.
https://github.com/notKamui/Keval - a extensible library to evaluate mathematical expressions (you can add your own operators, functions and constants to the parser/grammar) with a DSL
https://github.com/Black-Kamelia/Jellyfish - (WIP) A self hosted image and file hosting (see imgur or dropbox), with a web client, will be shipped with a docker image. The backend is in Kotlin (Ktor + Exposed), and is almost finished. We made our own "framework" on top of Ktor.
https://gitlab.com/opensavvy/pedestal is a collection of micro libraries that allow me to declare RESTful APIs in common code and call them in a typesafe way on the client and server sides (currently in ~alpha stage).
https://gitlab.com/opensavvy/formulaide is a web form editor which allows you to choose who in your company is responsible for accepting requests. It's full stack Kotlin (Kotlin React front, being rewritten to Compose Web, Kotlin/JVM back). It's been in production for a bit more than a year now.
Open sourced already a while aga... A small Kafka Connect Transform lib that allows to use JSLT for transformations: https://github.com/willhaben/wh-kafka-connect-jslt-transform As part of this blog post https://tech.willhaben.at/kafka-connect-custom-single-message-transform-using-jslt-2fc57ae98395
https://github.com/jkrude/AutomataFX A stub for simulating different types of automata using JavaFX.
https://github.com/shalva97/Youtube_history_parser - can parse your YT history and show what was watched per months. The best part is that it works inside the browser.
https://github.com/nacular/doodle - A pure Kotlin, UI framework
https://github.com/fredoverflow/karel – a simple teaching environment for imperative programming basics