Bulk download files

I’m building a personal generative designtool/artwork which outputs it’s creations as a png to be stored in Kirby.

Is there an easy way to bulk-download files from the panel? Or as represented via collection?
If not, I’ll be looking to implement a solution in my frontend (Vue) via fetch and zip (jszip) them.

You could probably do it via Kirby Janitor. PHP is able to zip things.