Feature request: release to Clojars with ClojureScript

maven does. maven is the package manager for Java and everything is using it. pom.xml is their configuration file.

FWIW just use lein for now. Getting deps.edn + clj + mvn to work together is a lot more work and the end result will be same but a lot more complicated than just project.clj. Plus you are trading having lein installed for having clj + mvn installed.