I got into scuba diving a year ago and every dive you're supposed to log data about the dive like duration, location, type of air etc. It's partly for safety, partly for curiosity, and partly to prove that you are as experienced as you say you are for advanced trips. It seems like 75% of people use paper booklets, 5% a myriad of shitty apps and the rest (like me) don't bother logging because it's so tedious.

So I'm putting together a really simple "Strava for diving" app in react native to suit my needs and then at the same time having a reason to learn a bit about go for the server.

Also @op one of my coworkers told me she built something to track some Disney collectibles game, and she gets thousands of users which is really cool, but you won't believe the entitlement from people asking for bug fixes on a free web app lol