Comment by fm200

Correct, gpg works out of the box with org files in emacs, you can google setup (https://orgmode.org/worg/org-tutorials/encrypting-files.html)!

One thing to note with this approach is that you wont see git diff, as encrypted files are blobs, so you have to be careful with it (its easy to overwrite something)... also, in two-three years, git repo size (depending on your usage) becomes/can become pretty large..

Other then that, its really good setup, and say you dont really fancy emacs/org-mode, you can pull same thing with encrypted text files/folders!