Can we post even if what we care about is secret? :)
I care about finding ways to turn a desktop computer into an a better auxiliary organ of the brain.
I am also interested in that. I'm interested if you are trying to solve a single problem or whether you are trying to do something more general.
As an experiment, here's a thread for people to post about things they care about. Specifically, for things that are possible to contribute to, in some way, and preferably, to invite others to join.
Mine is buying and donating highschool textbooks to schools in the 'grey zone' of Ukraine (where the war kinda isn't fought, but few people would be surprised if it started.) I don't deliver them myself, though.
What's yours?