Twenty thousand lines of code to make a todo list - congrads. And crashes Emacs when opened due to that last line being tens of thousands of characters long.
TuxxTodoApp has its JS 'compiled' into the bundle.js, that apparently somehow reached 20k lines.
Interestingly, the user-written code (around 175 lines) appears to make for less lines than the Angular one. It seems that doesn't happen much, so to me that plus this using React makes it seem notable.
Then again, Tuxx using FB's React + Flux without otherwise having affiliation with FB may raise questions about how well FB (React/Flux) will play with them in the future...