The new filepicker from form-js is a nice addition. However, it seems to store files in-memory, which is not very practical. I guess I need to implement my own version of FileRegistry. How can I register it to override the default one?
As far as I’m concerned, form-js offers no such customization.
You can create an issue in form-js GitHub repo to ask to make FileRegistry a swappable component or have a go at contributing it yourself.