How to access non-jar artifacts (aar, zip) downloaded via tools.deps in build.clj?

Question

I want to access an aar/zip artifact in build.clj that's already downloaded via deps.edn:

{:deps
 {com.newrelic.agent.android/android-agent {:local/root "build/jars/android-agent.jar"
                                            :doc        "extracted from aar"}
  com.newrelic.agent.java/newrelic-api     {:local/root "build/jars/newrelic-api.jar"
                                            :doc        "extracted from newrelic-java.zip"}}
 :aliases
 {:build {:deps       {io.github.clojure/tools.build            {:mvn/version "0.10.11"}
                       com.newrelic.agent.java/newrelic-java    {:mvn/version "8.25.1"
                                                                 :extension   "zip"}
                       com.newrelic.agent.android/android-agent {:mvn/version "7.6.14"
                                                                 :extension   "aar"}}
          :ns-default build}}}

In build.clj I need to unpack this zip and extract a jar from it.
And I don't have to hardcode .m2 paths or duplicate the version.

How can it be done?

See https://github.com/clojure/tools.deps/blob/46661e929ab702d0ee532188edb58d06b39cef6c/src/main/clojure/clojure/tools/deps/extensions/maven.clj#L172