Universal Laptop Keyboard Cover/Platform

Look for my other keyboard designs at https://thumbsupkeyboards.etsy.com/

I found that none of my laptops have the same key pitch. My previous designs fit one or two of them max. So I removed most of the supporting ridges, leaving only the central one and one closer to the body. The remote side is propped by the rubber feet. Now it seems to be working for all the laptops with 6 key rows.

Update 2022-01-19: Added a version with a little vertical edge to stop the platform from moving laterally. That is the rubber feet do not hold it in place firmly enough, that little sliver should be locking the board positively in place.