It wasn't entirely clear from a quick look at the wiki: What is postgresql used for? Metadata on media? How is authentication handled?
Apologies if I overlooked some obvious documentation (I confess I haven't looked at the code).
Are there any good comprehensive design overview documents?
I'd be interested in how much would be needed to (re)implement a stand alone version, running on a single technology for easy low-scale deployment (eg: running xmpp, mediaserver and api(?)-server all on top of nodejs, or via simple go-based servers)?