This looks great!
I use Loop Habit Tracker¹ on Android which at a glance seems similar.
I wish someone could pair a habit tracker with a CalDAV task tracker like jtx Board².
¹ https://f-droid.org/packages/org.isoron.uhabits ² https://f-droid.org/packages/at.techbee.jtx
Highly recommend Habit. Been my go to since the past 4y or so
Oh thanks! Do you have a link? I searched but a lot of Habit apps are returned.