[jitl]

I bought a Tempo Fit Studio about 6 months ago, and put it in my living room: https://tempo.fit/shop

It’s mostly dumbbell focused, so needs much less space than a barbell. That specific model brings its own screen, but you can get a smaller unit that just holds weights and uses your iPhone depth camera.

I follow their programs plus I select workouts that follow upper/lower/rest pattern. Maybe it’s less optimal than 5x5 but I’m getting great results regardless - so far down 4” at my waist and feeling a lot better; as the OP mentioned my back pain is gone.