After reading this thread, I’ve composed a few RAM Mount components together with a quick-release plate, which I’m happy with so far.
( Not exactly “low profile,” but plenty low enough for my needs, which is a combination of standing, reclining and sitting. )
The QR mechanism looks like this:
One half goes on the keyboard (base plate)…
…and the other half will eventually attach/detach like so:
I bought these three RAM parts–one is a magnetic base…
…which look like so:
Add the other half of the QR to it:
Get something metallic of your choice:
And here is an extreme tent
(which I prefer because it helps keep my shoulders rolled all the way back, not rounded forwards):
More common tent angle:
I wouldn’t say this was a cheap option to experiment with, but I’m happy so far… (I’ve been taking these gambles in ergonomics for almost 15 years, winning some and losing some along the way ;)).
Cheers