Laravel Betting to P2P Market

I currently run a house-based betting site built in Laravel and I’m ready to transform it into a true peer-to-peer prediction market that functions much like Kalshi. The goal is for users to trade directly with one another instead of with the platform.

Core work
• Replace the existing “buy-only” workflow with a live order-book where users can post buy or sell orders for Yes/No shares.
• Build a matching engine that pairs orders automatically in real time.
• Let traders close or unwind positions at any point before settlement so they can lock in gains or cut losses.
• Shift price discovery to pure market demand, updating quote calculations continuously and handling partial fills smoothly.
• Rework settlement so that, once an event’s outcome is verified, winnings (and any remaining collateral) are distributed to wallet balances without manual intervention.

Acceptance criteria
– Order book shows depth and last-traded price; orders execute instantly when spread crosses.
– Users can place, modify, cancel and partially fill both buy and sell orders from the web UI and through the existing Laravel API endpoints.
– P&L and position history update in real time.
– Settlement triggers accurately from my admin panel and releases funds according to matched positions.
– Code follows Laravel best practices, is fully tested, and comes with concise deployment notes.

If you have deep experience with Laravel, matching engines or exchange-style architectures, I’d like to see how you can help me launch this next phase.