Show HN: Advent of Habit

Some research suggests it takes around 21 days to build a habit. How about instead of doing another tired New Year's resolution you start now and enter New Year with a habit in place? :) I made this app for myself and then noticed it is 21 days until the new year. It is recommended to pick habits with a relatively easy criteria of "done", and don't beat yourself up if you skip some, even if you manage to get one habit halfway there isn't it great? P.S. I know that 21 days is kind of bs number, it can take shorter or a lot longer. Feedback is welcome.