echo Hello >> /keybase/private/Alice,Bob/chat.txt
while the recipient types
tail -f /keybase/private/Alice,Bob/chat.txt
and it just works!
edit: end-to-end encrypted too!
It only ever was a proof-of-concept and I haven't touched it for years. It may not be working anymore.
You configure a secret token and all servers which know the token automatically sync via BitTorrent. You don't need to manage lists of server IDs like with syncthing, it's completely peer-to-peer.
Previous HN thread: https://news.ycombinator.com/item?id=22995792
Are there any others to consider? It's been quite sad to see Keybase so stifled after being acquired. :-(
I'll miss coin flipping [0] dearly, though.
They probably need to charge close to $10/m just to break even for what you get for free.