The best remedies against back pain are:
- Good posture Keep a straight back as much, 90 degree knees and elbows.
- Excercise Work on moving your back a couple times per week, focus on building back and core muscles and mobility and flexibility of the back.
- Changing position When possible try to stand up at your desk from time to time, or go for short walks around the office. I like to drink lots of water so toilet breaks allow me to walk and stretch a little.
However if it continues and you seem to be getting warm sensations in your back I would recommend going to a doctor to get it checked out.
It kind of depends on your use case but I have a project that uses DnD kit. It should be framework agnostic. I have also worked with React Beautiful DnD, but that is specifically for React.