You can skip inotify tools altogether and do use systemd like this to trigger `rm -rf`:
`~/.config/systemd/user/remove-thunderbird-dir.path`
[Unit]
Description=Watch for unwanted ~/thunderbird directory
[Path]
PathExists=%h/thunderbird
Unit=remove-thunderbird-dir.service
[Install]
WantedBy=default.target
So often the answer to "Can systemd just do that?" is "yes." But before AI, it was hard to surface the way to do it. Now I can get a lot done just by asking Claude for a few ways of doing something, and often the systemd answer is there.