If you want a nice solid feel to your DIY keeb, this metal plate will let you snap in all your MX-compatible key switches and hold them nice and solid. This is specifically designed for the common "GH60" / 60% keyboard layout.
You will still need a GH60 enclosure of choice, PCB, and all the components. It makes the perfect middle sandwich support to hold your keyboard PCB in place and maybe even provides a little protection from dust and crumbs.
Note: This is just the keyboard stability plate. Don't forget to grab an GH60 enclosure of choice, some keycaps, and switches.