(There are quite a few shelves still to come.)
This one goes around the TV. First step, bolt the TV bracket to the wall.
I will have to make a plan with the white wall behind the TV.
The reason I’m doing this in stages is that I wasn’t sure exactly where this unit would end up. It could have been 5cm to the left or the right. Now I can measure the remaining space and design a bookshelf to fit.