This cheap thing.

It is impossible to answer that question. I went from Qwerty to Colemak DH to HandsDown to a slightly modified HandsDown to fit my finger dexterity. The journey is fun albeit frustrating at times..

Stumbled upon this forum while browsing, great find as I've just acquired Xkeys and Tipro devices. Can't believe how versatile and easy they are to program.  The potential productivity gains using difficult to master software and not needing to remember complex menu/key sequences is awesome.   Sorry if it's covered elsewhere in the forum, but if you look at the programmability of these devices and then add the functionality of the Keyboard Macro and MIDI Macro software offerings by MediaChance, where macros can call macros using their Oscar programming language (simple and easy to use), it all gets pretty mind blowing!  I'm a self confessed tech geek and look forward to not needing to rely on my aging memory anymore.

It looks like all PCBs, except EC, only support 7U space tsangan bottom row.  Something that comes with using vintage switches is that one usually must also use vintage keycaps harvested from a vintage board, so there is no choice in bottom row.  Many vintage boards (e.g. all Apple ALPS boards) are not tsangan bottom row.  There is really no drawback to adding more bottom row options to PCB.

In fact, there is a huge problem here. Due to compatibility issues, if we need to be compatible with both 7u and 6.25u, it will cause many holes in the bottom row to invert. And this will cause conflicts with the bottom shell when using shafts with excessively long pins. Therefore, in fact, Chinese users will see that we added more bottom row options in the initial sampling, but ultimately we removed these.

For the Apple keyboard, due to the unique height of the keycaps, we do not believe that assembling the Apple keycaps onto a regular keyboard is a wise choice. We also have a keyboard called Separation under development, which will be specifically designed to fit the keycaps of Apple keyboards.

Is it possible to put a EC11 rotary knob in the upper right switch position?   It's possible to fit this into the same PCB with Alps switches, without losing anything, e.g. like this PCB https://karolingian.com/products/alpine8kal-tkl-pcb-for-alps

We currently do not have this plan. On the one hand, our PCB already has too many hole positions, and it is difficult for me to confirm whether adding more hole positions will affect the wiring. At the same time, the knob requires additional programming.