Build an agentic full-stack tabletop game master application

I've run AI-powered tabletop game master sessions at conferences where the audience became the adventuring party and an AI ran the game. Audiences loved it. Now I want to teach you how to build the whole thing yourself. In this workshop, you'll start with a pre-built UI and mock data for a tabletop role-playing game. Over the next few hours, you'll turn that static shell into a working full-stack application with real-time multiplayer sync and an AI game master that narrates encounters, controls enemies, and responds to player actions. You will build: - Authentication so players can sign in and own their characters - Persistent game state for characters, inventory, and encounter history - Real-time multiplayer sync so all players see the action as it happens - An agentic game master with memory that tracks the story across turns - File storage for character portraits and map assets By the end, you'll have a running application where players can join a session, take actions, and have an AI game master respond in real time, complete with combat, narrative, and dice rolls. Prerequisites are: - Node.js 22+ - Basic TypeScript knowledge - Laptop with a code editor. No AWS account needed, everything runs locally.