There are all kinds of spot solutions for (Babashka, vm snapshots like snapstart, graal, using clojurescript instead of clojure) but it would still be very nice

There are all kinds of spot solutions for (Babashka, vm snapshots like snapstart, graal, using clojurescript instead of clojure) but it would still be very nice to just get a speedup running vanilla JVM Clojure out of the box without fiddlery. Eg SnapStart only works on AWS, not on other FaaS platforms, even there needs extra cloud infra fiddlery and costs extra.