Related, I really don't understand why gyms in my city haven't turned to renting out their equipment. I know people that bought dumbbells, over paid, and picked from really limited inventory. Meanwhile, the gym a block away has a giant pile of weights not being used, and has basically no revenue right now.
They won't make enough on rentals to break even on the amount that people steal and never return. A single 45 lb plate costs $60-$100 with covid pricing.
The first rule of being a passive hacker is... ;) That being said, they are all over. I find too many and I can't act upon them all. I've always had an interest in business models and successful companies/people in "non-sexy" (to most of the HN crowd) areas.
Sometimes it seems that everyone is all wrapped up in solving first-world 20-to-30 age bracket problems (social, picture filtering, SaaS for other 20 to 30 year olds, etc). Nothing wrong with that, but there is so much more out there. IMO, it is way more interesting and has much more impact on peoples lives.
I'm hoping to build off of this but its the bare minimum to start processing the API. Of course, I'll be adding some queuing and analysis on top of this.