I'm partial to the undo implementation in emacs https://www.felesatra.moe/blog/2019/08/04/emacs-undo https://www.felesatra.moe/blog/2019/08/04/emacs-undo I fin

I'm partial to the undo implementation in emacs https://www.felesatra.moe/blog/2019/08/04/emacs-undo https://www.felesatra.moe/blog/2019/08/04/emacs-undo I find the time machine model to be superior in practice