I followed some instructions online and was able to create a git repository from an existing folder on my computer. I then was able to rebuild the app with Unity. The only hiccup was that my aspect ratio settings were gone and I don't remember the exact steps to recreate them. Look for me showing up to work with my laptop tomorrow.
Also, I probably should spend some time reading about git, since I'm not exactly sure what most of the commands I ran actually did.