Decentralised accounts

[Pantyhose-X]

Is your feature request related to a problem? Please describe.
Currently Spacebar accounts are stored on a single homeserver. This is far from decentralised and produces an unfortunate single point of failure and control for the user.

Describe the solution you'd like

Replace user/pass with public key identity

Describe alternatives you've considered
replicating account data across multiple servers, and let clients pick which home server they talk.
homeserver to support decoupling accounts from DNS, and allowing multiple trusted servers to host the data.

[ghost]

Decentralised user Portable accounts

• AT Protocol Portable accounts
• Decentralised user accounts matrix-org/matrix-spec#246
• XMPP Account Portability
• https://github.com/snikket-im/xmpp-account-exporter