First of all, I like the app very much and use it regularly, amazing work!
Recently I stumbled upon some things:
I think it would be nice to see the reps or time to master an excercise directly and not the % value of mastery.
The target reps in a jounrey for an excercise seems to be always aiming for mastery. If the journey was build for cardio, hypertrophy oder strength aim, seems to make no difference.
If an excercise is in the warmup part, the target reps should be much lower than the ones for mastery. A warmup with 3x50 reps seems not right for me.
Maybe the ~ reps for each goals (cardio, hypertrophy, strength) should be displayed in the excercise info site as well?
Hope I explained it enough, thanks and keep up the good work!