Kotlin has also suffered from this. It gained its credibility due to Google annointing it as the primary language for Android development but, being so close to Java, aspired to replace Java on the server. Sadly, Kotlin's main framework - Ktor - is a joke. The default, Gradle-based Ktor project within IntelliJ doesn't even work and the docs are useless. So Kotlin's server-side aspirations shifted to Spring Boot where it is supposed to be a first-class citizen. In practice there are numerous gotchas for the unwary and if you fled to Kotlin in reaction against Java's archaic practices such as escaping regex metacharacters you'll be disappointed to discover that Spring Boot validation relies on Java-based annotations which means you have to use Java regex patterns. So much for being a first class citizen.