CrossFit is something that tickles my dopamine and also because it has given me enough general fitness I can take a break and do another activity without feeling like a moron. Which is one reason I didn’t get into activities when I was younger.
I’ve heard that martial arts are also sufficiently dopamine producing, which is good for us.
Stuff like Reolink or Hikvision PoE cameras are local, but I still put them behind a firewall to block egress.