I've been working on my other app, AdiPosse for almost a year at this point. I often have other app ideas and write them in a separate trello board.
I had recently stopped going to my crossfit gym and needed to find other ways to stay fit. For the time being, I was trying to do 100 air squats 2x per week as part of my new fitness routine.
The initial idea, as I wrote it into my trello board, was an app to track and gamify air squats.