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# Local File History Possibilities in Emacs
Wouter Groeneveld - <https://brainbaking.com>, <mailto:wouter@brainbaking.com>

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Emacs offers a myriad of ways to keep track of previous versions
of your document: through tilde-like backup files, auto-save
files, and of course the extensive built-in undo history
system. Navigating that can be a chore unless you install
something like vundo to visualize the undo tree. But with a huge
undo-limit, even vundo can become unwieldy. What if we can conjure
up a way to diff between the current document and the state it was
in ten or twenty minutes ago, not unlike IntelliJ's local history
system? Using a combination of Consult (preview) and diff-buff,
that can be easily done! In this lightning talk, we'll explore how
to quickly browse through diff history and roll back using
built-in Emacs tooling.



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