since this is so broken and requires CGO deps, E2EE support is now only
included with "make E2EE=on ...". The option to enable will then appear
in settings.
with a persistent crypto.Store, element reports "** Unable to decrypt:
The secure channel with the sender was corrupted. **", and others
clients just fail. Deleting it before reinitialising the OlmMachine
stops this, although the first message to a user takes a while as i
guess it has re-establish a session (idk, this is above me).
PIN is verified but not used currently. Works a little different than
the others, you input your matrix user ID and then the PIN is sent to
you. The bot doesn't support E2EE, so the bot being the first one to
message ensures the chat is unencrypted.