Make auto-logout configurable
I understand that Briar's legacy informs the need to «log out» a user on device restart, and possibly other events. However, this is massive adoption hindrance for some. I've activated a dozen people at a recent conference. Two days later, 4 weren't online anymore, and didn't see any messages. Today, even the last person went offline. I am sure they didn't quit, but just couldn't be bothered to log in again after the device restarted.
However, as a result of this security feature, Briar has been unreliable for this group, to the point of being useless now.
In the interest of facilitating adoption, please consider making this configurable, and even defaulting to keeping the user «logged in» across reboots etc.