It is, but I mean: Many of us do just exactly that with 3D printers.

We get a new 3D-printing machine and install our own build of Marlin on it, or move it all over to Klipper. Sometimes that involves replacing the entirety of the brain-box controls and that's just par for the course.

At its root, it's only some stepper motors, fans (more motors), sensors, and heaters that are used in very particular ways.

That's pretty similar to a Cricut machine, isn't it?