Is There a Way to Build a Platform for a Fitness App?

i want to have a platform that is all on chain, that effectively anybody can build an application around. I think t that's an interesting use of interopable data that many platforms could use. i would love to see essentially a fitness hap in the medaverse which basically is a mosive and makes the act of actually working out in social massively, massively maltiplayer. If you could actually have thes and, like a massin multiply, or satin and saa, thats what i would like to see. Personally. forwell, after been 15 months of covid and sitting at home, i could probly use that last pedoin.