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.