I think you not start at home. That "last mile" of connectivity is fraught with challenges of dealing with your internet provider and all sorts of other things. It can be a headache, and it's very particular to your situation, and your provider.

If you start "self hosting" on a cloud based instance, all that you learn in doing so will carry over to when you finally are able to move everything to a machine in house. It will give you results faster, you will make all the same mistakes and have similar problems, without having to fight hardware. You'll also have the network expertise of your hosting provider to fall back on. As much as you don't want someone waltzing in and walking all over your system, they don't particularly want that to happen to you either.

The hosting plans are cheap enough that you can run for several years for the price of hardware in your home. And in the end, if you find you're unhappy with it, it's a mouseclick to get it of your life instead of now having a some extra hardware (even if it's a just a Pi and an SSD) lingering and collecting dust in your house.

I think the virtual hosting is a smoother on ramp to this journey, you'll find faster success with it (which can keep you motivated rather than frustrated), and it'll give you a baseline to compare against if and when you decide to take the final step and bring it in to the broom closet. You can readily transition incrementally as you go forward depending on how you architect it.