past foci: functional programming, category theory/abstract math, quantum computation, number theory, journaling, software testing and verification, roguelikes, microcontrollers
I like to favorite comments that clearly express problems that people in this community have had. After all, it's hard to write what you mean when the problem is complex! I do this in the hopes that I can look back on them one day and see which ones I might tackle and which ones are no longer problems :)
https://news.ycombinator.com/favorites?id=darkkindness&comments=t