Thanks to a slip of my fingers, the first newsletter went out a few days early and with a super-dumb error in it. If you haven’t subscribed, you can read it here.
The final method in that code example should read
def execute(path, *args, &b) r[path].public_send(verb, *args, &b) end
TinyLetter (understandably) doesn’t let you edit newsletters that you’ve sent, so I will just put the fix here.