I liked the article, but I don’t understand how it handles interrupts? Wouldn’t signal handling imply a global nursery? Another discussion discussed logging, wh

I liked the article, but I don’t understand how it handles interrupts? Wouldn’t signal handling imply a global nursery? Another discussion discussed logging, which would also imply a global nursery. If a SIGHUP hits the process, how does the signal handling thread in the global nursery cleanly kill the logging thread? I like the direction, but maybe there have been refinements in the last two years to handle these cases, because they seem unresolved/unresolvable.