Get a bigger chair and arrange things so that you can wriggle some; curly legs under you or straighten out, lean left or right, etc. Static for too long is the problem; we're meant to move more but that need not require a lot more space.
I totally agree with the movement / wriggle throughout the day idea. When I'm in my Altwork, I use standing a couple times a day. I type with my back up and legs out or crossed or even hanging of the sides. When I do something like reading docs or watching videos I lean back more to get the weight off of my butt and lower back. Everyone tends to focus on the full recline mode but that is only one of the options.
One of the advantages of lying down is that you can take a lot more positions (especially your lower body) compared to sitting.
I'm intrigued. Would you mind posting a picture of this workstation?
That's why I love the Steelcase Gesture so much. I haven't encountered another chair that enables and promotes moving around as much as that one.