What does HackerNews think of vim-mundo?
:christmas_tree: Vim undo tree visualizer
Language:
Vim Script
Vim supports practically unlimited undo with branching history. You can visualize it and hop to any undo with a plugin.
I'm glad you found something that works for you, and I don't mean to dissuade you even if I could, but to me that feels like an antipattern if you only use it for typed text.
Consider that with a text editor like Vim, for example, you can "time travel" [0] through your file's edits, or even have undo branches/trees [1][2] available per file. That saves you the trouble of having to transcribe text from screenshots, and also barely uses any storage space.
Plain text is also highly more portable and more likely to be recoverable in case of drive failure or file corruption.
Additionally, or alternatively, you could try any sort of manual versioning system or background automatic backup solution that keeps versions of files as you work on them.
[0]: https://vimtricks.com/p/vimtrick-time-travel-in-vim/
There's a fork called mundo which has an inline diff mode that I'm a big fan of — https://github.com/simnalamburt/vim-mundo