Any suggestions on what web technology could be used to add support for sharing notes?

[asoundmove]

I believe the easiest way to share notes would be to enable multiple profiles:

Multiple synchronisation targets / storage buckets

It would be very useful to be able to configure several synchronisation targets (e.g. multiple Webdav backing storage areas) each containing non overlapping notebooks / folders, and each with a separate master password / own encryption configuration. Additionally it should be possible to move a note or notebook from one encryption/storage bucket to another. Or in other words chose which bucket a given notebook or note should be stored in - including a local bucket not synchronised anywhere. Th…