Hello, I'm sorry if this has been asked before but, I'm mainly a web developer used to Ruby/Python/Js and new to the JVM/Kotlin/Android world; I'm looking for the mainstream package repositories like Rubygems, pip and npm. Are there such stable sources one should know and look at when searching for existing libraries? Thanks for your help!

maven-central is where most libs are published. But incase you tumble into Kotlin/JS, you are gonna need npm too

Much appreciated @andylamax 🙏

You may also want to look at awesome-kotlin. Hundreds of categorized projects/libraries there