Great job so far. I greatly appreciate that Athens is open source, and it seems that you value potential interoperability and data ownership.

I'm curious about some aspects of the privacy of Athens. Would someone with disk access be able to read my notes? Would you store your banking or personal medical information in there? Standard Notes and others make claims like this (though their featuresets vary).

I'm also hopeful about mobile clients. If this is my second brain, I wouldn't want to leave it at home.