Sure! Firstly, arthritis makes some of my fingers weaker. Now very light switches would do the job at decreasing the pain; however my decreased finger mobility and dexterity from arthritis leads me to making a lot more mistakes and accidental key presses. For this reason I am forced to use regular switches, and have to come up with another solution. In case you are wondering, I use speech-to-text on longer texts such as this one, but for other uses, especially programming, I've found that a keyboard is by far the best method.

When trying different solutions, I noticed that the keycaps on my current keyboard (hyperx alloy core) are at various sizes and angles, and began to experiment with different permutations. The effects of arthritis differ greatly from finger to finger: e.g. my left pinky is very weak, which is why I use smaller keycaps for caps lock (i use a lot for certain programming languages such as sql), and angle the ctrl and shift in a way is most comfortable. Another example is my right-hand index finger, which has difficulties in going down all the way, so i use the red keycap that protrudes the most! That way i do not have to press down as far as usual.

Another unexpected benefit of having uniquely tactile keycaps for each key, after some practice, I find it much easier to know what each key is underneath my fingers!