Both znc --makeconf and HexChat znc config want me to specify passwords, servers, and channels. I don't have a clear mental model of how it's supposed to work, but I managed to muddle through, I think. Where to back up the config? Passwords don't fit in a dotfiles repo... ok, kbfs += znc-irc-bouncer-config.tgz, hexchat-irc-client-config.tgz.