[notpushkin]

Jetbrains is a third party vendor here, too.

[kuschku]

A third party vendor for the Kotlin language? Kotlin has replaced Java as C#'s largest competitor, so that's what we should be comparing against.

[toyg]

> Kotlin has replaced Java as C#'s largest competitor

Er, I don't think this assertion is backed by data. See for example https://pypl.github.io/PYPL.html

Is Kotlin the most "active", "hot", or "up-and-coming" competitor? Possibly. But the "largest"? Its deployed footprint and popularity are nowhere close to Java's at this point in time.