A local-first habit manager

• A habit manager should get out of your way as quickly as possible. To achieve this, it can make assumptions about what happened while you were not using it.
• Corollary to this: A closed-world system should be avoided. There is a big distinction between "no data" and "no engagement".
• When building a positive habit, like flossing, every engagement should give you a dopamine hit. When you haven't entered that you engaged in the positive habit, it can be assumed that you haven't engaged with it either. (If you have entered something on a later date.)
• When building a negative habit, like quitting smoking, the topic should not be brought any more than strictly necessary. (If you have entered something on a later date.) When you haven't entered that you did not engage, it can be assumed that you haven't engaged.
• Not every negative habit needs to be radical. Setting a goal like "Fewer than X grams of sugar per month" will be more feasible than "No sugar, ever".
• Positive habits can be dangerous when overdone. Setting a goal like "Go on three runs per week" may lead to an unhealthy amount of running like "every day" if the wrong incentives are put in place.

• You should feel good about accomplishing your goals
• You should NOT feel terrible about not accomplishing your goals, or about relapsing.