From V15, Framer X supports a format called "Framer X (Folder)" that saves everything into a folder, not a single (zip) file.
We can use Git to manage the versions inside this folder.
Open the "File" menu, and hold the Option key. We'll get a new "Save As" menu item there:
After it's saved, we'll get a new folder with extension
.framerfx, though it looks like a file in OS X Finder:
Framer X automatically generates a
.gitignore file inside the folder project.
CD into this folder and use Git to manage the files however you like:
cd ~/Downloads/Untitled.framerfx git init git add . git commit -am 'Initial commit'
And of course, you can put this directory as a subdirectory in your repo, version-controlling the Framer x project along side the rest of your code.