Google Fonts suggests syncing fonts to your computer with a tool called SkyFonts. However, if you're running MacOS and want to keep your machine updated with all Google Fonts without any extra software, you can do this with Git, thanks to the Google Fonts Repo.
To do this, run the following in your terminal:
cd ~/Library/Fonts/ git clone https://github.com/google/fonts.git google-fonts
Done! In the future, you can download new fonts by running: