I foolishly excluded the ~/Applicaitons folder from my backups and I am regretting it. Funny thing is that the only app I have is Finder and Chrome (airdropped it over from another computer)! I don't even have System Preferences or the App Store! Internet recovery doesn't work and neither does reinstalling the OS, every time I try to redownload it, it says my username or password is incorrect.
I know what I signed up for when I downloaded the beta on this machine, however I think it's imperative that users get a warning when excluding critical folders from backup that can handicap the system. It is a little shocking that Time Machine allowed me to restore my system to a vegetable. I am currently downloading the GM from another machine (no direct download links 😟) and hopefully that resolves my issues.