Just wondering, but is ortholinear actually better? It's not like my fingers are 4 parallel lines. And I don't have hands perfectly straight on the keyboard either - hands come in at an angle.
Note that on normal keyboard all alpha keys are staggered to the left. For both hands. So, this stagger is not helping you to keep your left hand at correct angle.
"Grid" ortholinear is not an ultimate solution either, but it is more comfy (from personal experience).
That is strange now that you mention it, I have a split keyboard and it really should be staggered the other way on the left side but isn't. Also, I think the top row stagger is a bit too large but the bottom row stagger is way too much. I haven't tried the linear but my impression is that a slight stagger in the correct direction for each hand would be best, although linear seems likely to be close enough in about the same way that the top row stagger is close enough on the right hand.
One thing I like about my keyboard is that home, page up, page down, and end are on the left so that it is symmetrical. It also has a tenting feature that I like, having the keys tilted at an angle is perfect for me. Both of these also allow the mouse to be a bit closer. I also like that the space bars aren't as large, although I wish they were still a bit smaller.
I want to remap that useless print screen button near the arrows to a delete key, which I found from a previous keyboard is really handy to have near the arrow keys.
> slight stagger in the correct direction for each hand would be best
Thing is, if you have split keyboard with no stagger (grid) or vertical stagger, you can adjust halves of keyboard to suit your needs. This way you can make virtually any angle. Something like this https://www.zsa.io/moonlander/
> page up, page down, and end are on the left so that it is symmetrical
This is actually nice layout. I also see how can this be useful in gaming (few additional keys for pinkie).
And it isn't ortholinear.
The layout is designed to 1880s specifications.
Will you share plans for self fab with an alternative key organization?