I wonder whether someone already has build away to create modular synthesizer using block with knobs on the table. A line on the top of the knob would signal its position. (In the video I saw some shots that looked like sequencers.) You would also need some mechanism to connect the modules together. I played around with VCV Rack [1], but adjusting knobs with a mouse feels very different than using your hands to turn a physical knob. Also, I would like to have more freedom in arranging modules more freely as you could do on a table, instead of using patch cables that go into all kinds of directions. Especially for newbies, it would be an interesting way to see if they want to go into real modular synths based on Eurorack [2], AE Modular [3] or microrack [4].

[1] https://vcvrack.com/

[2] https://en.wikipedia.org/wiki/Eurorack

[3] https://www.tangiblewaves.com/

[4] https://microrack.org/