Community Network

I have been toying with an idea for building an app with multi brand loyalty points. Currently I have a team of 4 noob devs that I studied with building out the MVP for a Hackathon. I'm curious if someone on here has experience in this sort of field and what advice you'd give for a first timer while building this out. For context, I have 6 years experience running a local small digital services business in the community I'm targetting for initial testing and have only recently learnt how to build WebApps from a Data Science boot camp.