keyboards VS qmk_firmware

I have custom alpha layers and extremely optimized symbol layers, combos and other features in my keymap. It is not designed for web development, but it is good for VIM and Java.

That made me think. If I would adapt Romak for 20 keys, it would be something like this:

But since you are a programmer, I invite you to check the fancy programmer features that I have implemented in my keymap. I still need to rework on the documentation, but you can take some inspiration from there if you decide to design your own.

Romak also has some very nice attributes, as do poqtea and uciea. I also find Canary to have a lot of merit.

There is also the unusual option to handwire a keyboard without soldering, as I did here, but the result might not be so reliable.

You can see my layout here.

I started my own layout, Romak, using BEAKL as inspiration, with similar objectives, mostly making it more suitable for my home language and reducing the load on pinkies and indexes, concentrating in the middle and ring fingers instead. Another thing I did was to remove the top row key from both the central and pinkie columns. Later I also removed the bottom row key from the pinkies.

My first handwired board checks all your requirements, and I have some pictures of the process, but it is not a complete guide. It might help though. And I think the FFKB case can be great for a first handwired project.

Really nice work, congrats. My custom layout is designed for both Portuguese and English, and I have some of the same ideas implemented, with similar reasoning. I also have some programming features that remind yours, but I preferred to remap hjkl instead.

I've used two different options in my builds. You can see them in the build logs: FFKB and Rommana.

I only use keyboards running QMK or ZMK, so:

My Caps Lock key is a Control/Escape key (when tapped it behave like a Escape, when hold it's Control), and my left Control is a one shot layer switch key [1], which means I tap LCtrl once, and then press Caps Lock + 5 to get Ctrl+F5. Doable with single hand and more ergonomic as I have an unusually small hand.

[1] https://github.com/qmk/qmk_firmware/blob/master/docs/one_sho...

I agree that reduced finger movement is a crucial step in achieving typing efficiency. This is nicely solved by mod tap modifiers in QMK/ZMK[1] where key acts as a char when tapped and as a layer while pressed.

[1]: https://github.com/qmk/qmk_firmware/blob/master/docs/mod_tap...

Separate wireless controller, see the glue code at [0]

[0]: https://github.com/qmk/qmk_firmware/compare/master...nuphy-s...

If you have a keyboard that runs QMK firmware[0] with the VIA[1] feature enabled[2], then there is a convenient testing app available from the same place you customize your keys [3].

[0] https://qmk.fm/

I made a layout that I'm happy with. Spanish is my native language, so it has characters like the accents and 'ñ', but it's meant to be used for programming as well. Visual Studio uses a lot of Ctrl and Ctrl + Shift shortcuts, so I left them in the same place as the default Corne layout so I can press them both with my pinkie finger. Perhaps some of the ideas are useful to you.

Also, it would be possible to do this for the RP2040. However, it needs some work to get working. but for example: https://github.com/qmk/qmk_firmware/pull/20999

Ok, it's an ST7735, not too different from the ST7789. You should be able to get running by looking at their files in the QMK repo and going from there. You should also check their resources page.