I’m quite tall and have rather long arms. As a consequence, I rarely find myself sitting at the desk with the elbows bent at a proper angle while typing. I figured out it would be more comfortable for me to work with the keyboard sitting on my lap, tented if possible, but I couldn’t find a stable configuration with my split 34-keys board. Is there anybody that came up with a smart solution to this?
I’m also considering building a small unibody like the hummingbird, but I guess it may be too small to comfortably sit on the lap.
Ben Vallack made a video really close to your question. https://www.youtube.com/watch?v=iOupyi-lQZM annnnd of course ~14 months later he found a better way. https://www.youtube.com/watch?v=mT3TToFqqEU
My keyboard designs are unibody with a slight split, very similar to the lumberjack. when I break it apart , a slight angle really makes it comfortable to use. but nothing really beats having your arms shoulder width apart, as it helps put the shoulder blades sit in a more natural placement.