Looking to integrate lightning as an in-app payment solution for a project

1st - I'm not a developer (so go easy)

We are currently developing out an app to be used in social sports activity. Our user-base will be non-technical. We want to allow in-game bets (based on skill) where several players can contribute (e.g. 20,000 SATS) to a common kitty or shared pot. The winner(s) will get a share of the total. Hoping to be able to use Lightning.

Users would need to be able to :

a) add funds (SATS) - but maybe from a FIAT on-ramp

b) participate in games and submit their SATS to the pot

c) collect winnings (in SATS) if they win - could be a type of smart contract or other simple logic

I have had an intial discussion and need to spend time understanding the options better. I willl keep adding to this story....