Clojure is associated with the JVM platform, Java and Scala and Kotlin end user open source apps are also underrepresented relative to dev population. There are lots of OS Clojure projects but they are mostly tooling, libs, databases, etc. There are a lot of business and data stuff most of which isn't open source.
Come to think of it are there many TypeScript open source apps either?
Come to think of it are there many TypeScript open source apps either?