I am not at my machine, but I remember that lein shadow compile app succeeds while shadow-cljs release app fails with the same stacktrace. unsure if that is useful information

is there a simple middleware for converting camelcase json to a kebab keyword object on the request and back on the response?

I've been struggling with this for longer than I care to admit

Maybe configure Muuntaja to do that? https://cljdoc.org/d/metosin/muuntaja/0.6.6/doc/configuration#modifying-json-encoding-opts