Creating an app that connects people to craftsmen.....what are the reqs....all ideas are welcomed

Question

Realized most internet users focus more on B&S nd less on Services rendering so
Had this idea of making an app to solve Craftsmanship problem.......where
Craftsmen registers with full details
User connect with emm for their services thru the app
Mediums like Enscrow can be utilized for payment(trust)
cryptos for privacy
.........

more like freelancer/upwork/paxful.....services rendering for all craftsmen

Answer 1

Don't exposed your idea to strangers, it could be stolen.

Who knows the potential of an simple idea (maybe billion).