grappling+ lifting weights, possible?

Simple question, would like to do martial arts (grappling type) and still lifting weights to keep my size and look.

Is there any procedure or important factor that I should consider?

I was thinking to do martial arts on mon-wed-fri and lifting on tue-thu-sat then take sunday for resting.

Is it ok given that the weight volume will be kept low or there is a risk of overtraining?

I can eat as much as I want and no need to wake up early at morning so food and sleep are not a problem.

I'll be probably supplementing with ostarine as well in the beginning to help my body.

I train BJJ every Tuesday/Thursday.

I lift weights Monday/Wednesday/Friday.

I take the weekend off for rest

Most fighters still lift. Typically, it's low weight, high reps. Some grappling programs will include body weight exercises in with the workout.