so, how do I get a list of peers on ZeroTier? no memory even of the binary's name. grepped history. okay, 'sudo zerotier-cli peers'.
none of the output rings a bell. I used context clues to deduce that the box is probably not on ZeroTier. only then did I remember that past me only installed it on 'personal' boxes: this infrastructure which I've come to rely on daily was a limited test to see how ZeroTier works. I didn't want it on 'work' boxes til I was running my own C&C/relay.