Ask HN: Projects that don't make you money but you're doing it out of sheer joy? 9 years ago
I keep developing LiveStickies, a UWP for simple notes, because all the existing ones were crap (for me).
https://www.microsoft.com/store/apps/9nblggh4wm0q
In the meantime, I've grown to 20k downloads and 200 daily users.
I regularly receive e-mails and reviews from people telling they love the app and use it everyday, including someone's grandma, which is very encouraging. :)