How to make this:

1. Install IdeaVIM
2. Do some work in some files.
3. Pick the last file.
4. Do lots of changes.
5. Hold `u` to undo changes.
6. See die of multiple popups.

@minus The biggest problem is that I can't code without VIM keybinds :(

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Functional Café is an instance for people interested in functional programming and languages.