There are one-handed keyboards available, like this one. [1] When typing, you hold the space bar as a modifier key to type the mirror image key from the opposite side of the keyboard (so a "D" is typed by holding space bar and pressing "K").

I have the left-handed version, which has a smaller footprint. I bought it years ago and was able to type about 3/4 of my normal speed, including code. The price appears to have skyrocketed — I paid around $100, and it's now $600. Hopefully your employer can cover this!

1: https://matias.store/collections/ergo/products/half-qwerty-5...