Has anyone attached a mechanical keyboard (impermanently, of course, since at some point you'd want to close the laptop) to their laptop, on top of their regular keys?

My laptop keyboard no longer works well, and I'd disable the driver for it and permanantly use the mechanical.

I'm not sure yet how I'd attach it - I'd like it to be able to snap on. I'm thinking about 3D printing a thing (parameters of said thing are yet unspecified) to hold them securely together. And I'd want them to easily come apart, but when the mech keyboard is being used, I want it to be pretty rock solidly attached to the laptop. I game on my laptop, in my lap, in bed. (Yes, with a trackpad.)