> In Europe a CNC, or at least good and repeatable saw is available at large hardware stores. You can get any product cut to any shape precisely as long as it's a rectangle. I've not noticed one that offers more than this such as drilling holes.

That's not the case in the US.

The big box hardware stores have a large track saw vertically mounted that can cut full sheets of wood, but there usually isn't someone working who is trained to operate it. They also have a rickety cart with a hand saw and tape measure attached with too short cables that you can try to use to make your cuts of dimensional lumber.