This is not something I do in a very structured way, but I've always been interested in optimizing my performance and health. To be honest, I sort of assumed most people in tech are similar in this tendency, although when verbalized I realize that's very presumptuous of me.
Striving for higher performance and longevity physically and mentally, especially in work-related aspects, tends to be my default state and I find the idea of optimizing myself very interesting. However, I have not managed to find a good balance between that and just relaxing; that default state of self-optimization comes at a detriment to my peace and wellbeing. Over the years I've realized that this is not sustainable, but I can't manage to stop. I would be very interested in taking part in such a community, and hopefully learning more about both performance optimization tactics as well as how to let myself switch off and stop churning.