Roblox Item Betting Site Build

I need a custom web platform that lets Roblox players wager their own in-game collectibles against each other in a secure, provably-fair environment. The focus is entirely on Roblox betting—no sports or... (Budget: $250 - $750 USD, Jobs: API Integration, Database Management, HTML, JavaScript, Node.js, OAuth, PHP, Python, Web Application, Web Development)