2-IMMERSE/get-started ? reverse-engineered prompt

Build me a clean getting started repo for 2 IMMERSE that helps someone set up the platform locally, understand what it does, and run the sample experiences.

I want clear documentation for building the components, deploying a local instance with Docker Compose, and trying out the example DMApps. Keep it easy to follow for someone who is new to the project, with step by step instructions, a few useful scripts where they help, and a simple overview of how the pieces fit together. Include enough detail that a person can go from a fresh clone to seeing the examples run, and add notes for common setup problems. If you need to check current docs or command syntax online, please do that.