The Little Luggable is my take on a cyberdeck. It's built around the Raspberry Pi 4 Model B and the Pelican 1150 Protector Case and is loosely based on Jay Doscher's Metal Kit. It includes a fully-custom mechanical keyboard designed to perfectly fit the lid of the 1150.
If you're interested in building your own version of the Little Luggable, you should be able to find all the details on GitHub, and if you find anything missing please reach out--I'd love to see more of them in the wild.
The Little Luggable has gone through many iterations over the course of its life, from early an prototype that used a cheap bluetooth keyboard, all the way through to the full custom bluetooth mechanical keyboard it has now.