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What have you used it for? From Anarcat's notes, it sounds like it isn't very generally applicable.

• ndr 2y ago
  It's great for running unit tests on save, or hacking on python script and re-execute them when you need. I often use something like this when iterating over stuff. This is a quick hack to list files I touched and differ from main. git diff main --name-only --relative | entr -r -c my-command This of course needs to be killed and re-run if you want to pick up new files
  • kragen 2y ago
    That's a great tip!