Standing desk (electric, not crank operated) + tiny under-desk stationary bike. Sitting the whole day working/gaming and still getting to do some physical activity is great.
3D printer (I’ve got Prusa MK4+MMU3). It’s an amazing versatile utility, great skill to have, and a fun hobby. Don’t buy cheap chinese clones, it’s not worth the hassle.
Technically correct is the best kind of correct.