good support for client-side signing, remote signers, well-documented protocols for all the things this app needs. also: was planning on introducing it to this audience, so a "bring my own login" feature is a nice bonus. ....also also...: there are sharing features on the roadmap ;) sending graph subsets to friends. working on a shared list together live... it'll work exactly like multi-device sync, except some of those devices are other npubs. for isolated data that you control sharing for, of course.