Design a system architecture for a decentralized bookmaker app

We're working on launching a decentralized bookmaker app where users can also be the players on their favorite games. The main features are: Event hosting: users can host game events where they compete on their favorite games. All event participants require to place a deposit in advance and the deposits are distributed between players. Betting: Other users can also have fun by betting on who is going to win on that event. Winners share the total bet according to their bet amount. Token contract: Unlike online casinos, we want to make the results and bet amounts as clear so users can be confident that they're not being scammed. We've prepared some documents in more details so we'll share them to you only if we think you're serious. Please tell us about your past project with dapp when introducing yourself or the company. Thank you.