A deliberate practice app for guitar players who want to level up

Cool! I guess there needs to be a way for people to share new lessons to practise, it gets complicated with copyright pretty fast.

For real "lessons" you'd probably need to start at chord progressions, go into scales and how the chords relate back to those, then move to these types of soloing technique lessons.

AlphaTab is the star here https://github.com/CoderLine/alphaTab - it's been maintained tirelessly for years by Daniel Kuschny.

I've started to build this type of lessons sitea few times in the past and never really got it together enough to release anything. I've done scale/chord/arpeggio tools: https://github.com/webprofusion/scalex

What do you need "scales" practice for on guitar? It's a totally relative instrument except when playing on empty strings, so there's only one "scale" pattern that you have to learn. It's nothing like a keyboard!

There are dozens of scales to learn, with roots all over the fretboard. Each useful for different things. Just the basic minor pentatonic requires five different patterns. Eight note scales require eight different patterns, with various roots depending on the mode you want to play.

The Guitar Grimoirr scale book is 200 pages!

By "pattern" you mean starting the scale on a different note/step? (or, equivalently, rolling the interval arrangement and ending up with one that's seemingly "different"?) That seems like a trivial change - if you can play C-D-E-F etc. you can play D-E-F etc. Why does it have to be "learned" separately?