This looks neat. I'm interested in some of the more advanced exercises like the Rick Beato one here (
https://app.captrice.io/?eid=ph79of6zlotm8y24mc4) but a couple of things prevented me from truly attempting it:
Firstly, the tab for that exercise is long enough to need a scroll bar, and so I don't understand how one is supposed to play along with that tab to a metronome... am I expected to operate the scroll bar every couple of measures while still staying in time with the metronome? So I would suggest either auto-scroll, or better yet just find a way to get all 12 measures of the exercise to fit on the screen at the same time. I have a big enough monitor that it would fit.
Secondly, although you have the link to the embedded video player, I wouldn't be able to keep the intended sound of the exercise in my head long enough that I would feel confident I was playing the exercise right later. The app really feels like it needs a synthesized guitar sound that would play the notes of the exercise, so that I could play it along with the synthesized version and know whether I was hitting the right note. It would be OK if it sounded cheesy -- that would be better than nothing, and then once I was confident that I had the correct sequence down, I would disable the synthetic sound.