I use monkeytype everyday between some stressful tasks or pomodoros to keep my touch typing in check.
Few things: Why do I need to complete 20 sessions? Can I do only a few? That's the only time I have between tasks.
The line breaking is weird, sometimes the reference is on the line below, but what I'm typing is on the line above. Maybe it's a difference with the shadow or font-weight. At least here I can see a bit of a shadow with the reference behind.
Anyway, awesome idea!
Now I can train something that is not English using an existing habit. Thanks!