There’s a list of most our features here:

nostr.build

Features · nostr.build

nostr.build is fast, private media hosting built on Nostr and Bitcoin. Upload almost anything, share it straight to Nostr, and keep your own copy. ...

There is a video here, but we recently upgraded the UI so it looks a lot better, including dark mode, more features etc.. Basic features outlined for each acct here: https://nostr.build/plans

The main thing I'm interested in is the file organization piece, but it's difficult to see tell that from the video. Plus the site says data only stays for 1 year, so does that mean I can't keep something longer? Also, is everything public by default or private by default? And is there anywhere to only share files with a specific npub?