What I love about this photo I took a while back is that it looks like I took four separate photos, then pasted them together shittily without making an effort to scale everything correctly.
That's not the case; this is a single, bad, photograph of four keyboards shittily arranged on four different mini desk mats taken at the same time. The two at the top use MX spacing, meaning the PCB is sized for the most common mechanical keyswitch type. The two at the bottom use Choc spacing -- Choc being a type of switch that is low-profile, meaning the whole board is flat, and which also has a smaller footprint overall, meaning that you can make the keys be closer together. The difference is slight but noticeable in use, but it can make a huge difference in the overall size of the keyboard.
- Top left: Kyria with SA bliss and choc thumb row
- Bottom left: Hillside48, which uses the Kyria layout (less one key on each side) but choc spacing
- Top right: Pannda666 Pastel Goth, which uses the classic Reviung41 layout as is
- Bottom right: Reviung41 LP, which uses choc spacing
All of these are wireless builds using Nice!Nano controllers and ZMK firmware, except for the Panda which uses a USB-C Pro Micro clone, I forget which one.