Yes being able to have compilers as libraries inline in the same code and same language. That feels like what all these call for. Which really is the Lisp core I suppose. But with static types and heterogenous backends. MLIR I think hoped (hopes?) to be something like this but while C++ may be pragmatic it’s not elegant.

Maybe totally off but would dependent types be needed here? The runtime value of one “language” dictates the code of another. So you have some runtime compilation. Seems like dependent types may be the language of jit-compiled code.

Anyways, heady thoughts spurred by a most pragmatic of libraries. Cloudflare wants to sell more schlock to the javascripters and we continue our descent into madness. Einsteins building AI connected SaaS refrigerators. And yet there is beauty still within.