Or Kotlin, since it's IMO a slightly better language than C# in terms of ergonomics and features. I understand that 90% of Kotlin's audience is mobile devs and

Or Kotlin, since it's IMO a slightly better language than C# in terms of ergonomics and features. I understand that 90% of Kotlin's audience is mobile devs and server-side Kotlin is rare, but as a .NET developer, a few years ago I did a small production Spring Boot webservice in Kotlin and the experience was really good.