Also note that if it’s just for personal use, you don’t have to have a domain for HTTPS. You can self sign, or create your own certificate authority, you just need to clients to trust it. But domains can be cheap or even free, so it’s better to get one so you don’t have to specially configure your devices.
Not all galaxies are spirals, and spiral galaxies may (kinda) stop spinning after galactic mergers make them into ellipticals with low net angular momentum.