Ergonomic Keyboard

After I already call a height-adjustable desk my own for some time, now came the next evolutionary step.

Since I have had pain in my right arm (shoulder, elbow, wrist and finger joints) for many years, I need a keyboard without a field of ten and without control keys. This makes it the shortest way to the mouse.

To reduce the strain on the finger joints, it should be a keyboard with laptop-like keys.

After a little searching, I very quickly landed on the Logitech k810. This keyboard has made me happy for more than 10 years.
It offered everything I wanted and I was a little afraid of the day when it would break, since logitech has ceased production of this series.
But it turned out differently.

Late in 2022, the problems in my neck and shoulder intensify and I became aware of the twisted-in posture I was taking on a daily basis.

So I set out to find a more ergonomic keyboard.

After much searching, I had three devices I shortlisted:

Actually quite good. Nice typing feel, the spacing of the keys is big enough to avoid typing errors when typing uncleanly.

But the control keys. Folks, they are a horror. I use the Pos1 and End keys regularly in my daily work. On my Logitec k810, I was able to do this via Fn+Right Arrow and Fn+Left Arrow respectively. With this keyboard, I have to change hand position and find the right one in a bunch of unmarked keys. Nonsensically, the two keys are on top of each other and not next to each other. This means either looking at what you are doing or counting along and thinking once around the corner to find the right key.

Then there's the Enter key. Microsoft, who came up with that? There is nothing to the right of the Enter key on all current keyboards. So it's easy to find.

On this keyboard, I hit Delete so many times instead of Enter. Guys this is really tiring.

(Go to keyboard)

Which keyboard I had here exactly, I unfortunately no longer know. Unfortunately, the typing feel was terrible. The keys had partially jammed on the housing and when typing you felt the need to support the keys with oil to reduce the crunch.

(To the manufacturer)

It really could have been. Came from everything my Logitech the closest. Unfortunately, the designers came up with a completely new concept when programming the control keys and this one wouldn't go in my fingers.

(Go to keyboard)

Why are our keyboards actually the way they are?

This should actually be clear to everyone. The forefathers and mothers of our keyboards were typewriters. They had problems with levers and that's why the keys are arranged the way they are. Please don't talk about dvorak. That's no solution.
So if we have established that the keyboard on my desk is part of my problems, the question should actually be:

What would be a good keyboard for me?

One of the biggest oddities of common keyboards is that they are asymmetrical. And I don't mean the whole layout, but the arrangement of the letters relative to each other. 
This asymmetry causes us to have to turn our hands in unevenly.
For sure, there's a reason for this, but there's mainly a reason against it: Most human bodies are not asymmetrical.
So my choice fell on what are called column stackers. In this layout, the letters are arranged on top of each other, and the finger essentially only has to move back and forth.
Next, my fingers are of the shorter variety. This means that the fourth row (the number row) can only be reached by raising the hand. So I wanted to have a keyboard with three rows. 
The result was the kyria rev.3.

(To the keyboard)

Split Keyboard database: https://golem.hu/board/

Comparing Split Keyboards: https://jhelvy.shinyapps.io/splitkbcompare/

Home of Kyria: https://splitkb.com/

QMK Configurator: https://config.qmk.fm/

Keyboard Layout Editor: http://www.keyboard-layout-editor.com/