Had a Topre Realforce 87u for about a year. I really like it but upon buying in doubt with Kinesis Advantage 2 and that feeling never left. So ended up buying the Advantage and never went back. I have the Kinesis 360 pro which is nice, but I still like the keys and feel of the old one better 
. But the ZMK is very cool.
jeroenbourgois
D4no0
I have a HP KU-0316 keyboard that is at least 10 years old. This keyboard has been through hell and fire, but even after being used at least for 5k hours in conditions where it was fully flooded with liquids multiple times, it still works better than a new one.
If you find more of these as old stock, please send them to me 
.
abreujp
My Keyboard Setup for Elixir Development
I use a split keyboard called the Tergo Sofle from a Brazilian company. It features Outemu Yellow low-profile switches that provide a very smooth typing experience. This keyboard has enabled me to program for extended periods without fatigue.
What I appreciate most about split keyboards is that I no longer experience shoulder or wrist pain since I can work in a much more comfortable position. The ergonomic benefits have significantly improved my daily Elixir coding sessions.
For those interested, the keyboard is available at: https://tecladoergonomico.com.br/
hauleth
D4no0
lud
Egis
I wholeheartedly recommend Ultimate Hacking Keyboard or any other split keyboard.
Been using it for years. Very ergonomic and comfortable, my RSI is gone.
hauleth
slouchpie
Is anyone getting one of these Preonic keyboards?
https://www.kickstarter.com/projects/keyboardio/preonic
Selling points for me:
a hidden mode where the keys all quack like ducks
The butterfly lights up
You can configure the knob to do all sorts of things