[chx]

I will offer an alternative, one you probably never heard about, the vertical keyboard. The first usable one I am aware of is the Kinesis Freestyle with the Ascent accessory, it was meant to be vertical. It's worth taking a look: https://www.kinesis-ergo.com/wp-content/uploads/2013/08/frre... you will understand better the hack in the next paragraph.

The Matias Ergo Pro is a split mechanical keyboard with the palmrests secured by standard tripod screws. So people went wild: some used a pair of small tripods to hold it near vertical https://geekhack.org/index.php?topic=53184.msg1999684#msg199... some used clamp on mounts https://geekhack.org/index.php?topic=78723.0. Spurred by the first post linked, as I described in https://geekhack.org/index.php?topic=79810.0 you can add your own feet to the side and cobble together a contraption to hold the two sides against each other (I use a 1/4" Male to 3/8" Male Threaded Screw Converter Adapter, a Manfrotto 259B Extension pole 6"-10", a"Triopo Short Column Ø24mm for MT-128 and GT-128 tripods" and a 1/4"-3/8" spigot like the Impact SRP-109). This makes you work with a high quality QWERTY keyboard in a position which doesn't kill your wrists. You might want to use a pair of tripods at first and slowly adjust to vertical (and then perhaps return the tripods...) -- it took me about a week to get up to 90 degrees with the Ascent which is adjustable.