It is true in some sense, we don&#x27;t just implement things Servo wants. If Rust was beholden to Servo, we would have put inheritance in the language over a year ago, for example. That said, the eventual work for &quot;something inheritance like&quot; is absolutely predicated on Servo&#x27;s needs. But we put it on the roadmap and weight it like anything else.<p>That said, we do take their needs into account rather highly, just like any project with a large upstream user.<p>Just like we wouldn&#x27;t want Rust to be useful for only compilers, &quot;only compilers and web rendering engines&quot; isn&#x27;t much better.