[preek]

If you want to run short lived processes, why don’t you run lumo? Lumo bundles cljs and lets you write scripts like Shell, Ruby or Python.

I use and like it quite a lot.

[taeric]

How does it compare to just saving an image in sbcl? File sizes are large, but that is a niche area to care about nowadays.

[preek]

I'm sorry to say, but I have no sbcl experience.

However, the 'general experience' is just like with other scripting langauges (like Ruby/Python/Shell), albeit it's a Lisp.