Today I stumbled across a jj cheat sheet and it contained an absolute gem of a command that I had somehow completely avoided knowing about this entire time: jj config edit --user. You can just run a jj command to open the config file in your editor! You don’t have to remember whether you put it in ~/.jjconfig.toml, or ~/.config/jj/config.toml, or whatever, you can just edit it! Super great.