Seems like every hobby is too obscure for most to care at the level I do.
Sim racing, rtlsdr, self hosting, ANY kind of motorsports, home automation, blogging, DND, video games...
At the surface these are not too obscure but I find very few people in my day to day life that care about them in detailed way
I get the idea and finding the right audience in real life can be tough, but I am, like many others I'm sure, just curious and like learning new things. Hearing someone talk with passion about something they are interested in can be engaging, and you get to learn a lot.