Thank you for your feedback!
I refrained from adding leaderboards and the concept of scores because it didn't feel really "zen" to me, but one can indeed make use of the "elapsed time" in the bottom left of the screen for personal challenge purposes, if they so wish!
I was thinking about including unmovable files too, so thanks for reminding me about it. I will eventually need to rework the UI a bit, so to fit all the features as they come up!