App idea: people pledge to walk x number of steps per day (tallied weekly). To participate you must deposit sats to a pot wallet. At the end of the week those who don’t meet their numbers lose the sats, while those that do meet them get their sats back + forfeited sats.

In any case everyone wins and it’s a tiny bit of extra motivation to do it. All for fun not for profit. Extra sats can be socializing money.