I've played around with this, e.g. embedding JS in bb, it works. But what doesn't work well, or at least, at the time, was pre-warming a context so it would start faster

If you're trying to compile the CLJS compiler to native: this might work to some degree (in theory, I've never seen it work in practice), but macroexpansion has a problem since it relies on clojure.core/eval

use case would just be our js markdown parser for now

where we could also go down the quickjs route

right, so you want a binary to shell out to for markdown?

was trying to compile all of Clerk to native

would need to include sci / bb to be actually useful