Your watchlist and paper trades on the wall. Forecast calls you wrote down earlier get graded against what actually happened, using files from the one folder you pick. It never places a trade, and it never reaches the network.
The Desk's real door sign. The line under the name is the whole job: read the one folder you pick, read-only. Nothing else leaves the room, not even its own paper trades.
Get the-desk.zip below. Unzip it, you'll get a the-desk/ folder with room.json and a view/ folder inside.
Copy the whole the-desk/ folder into the rooms/ folder of your SandboxVille code, so the path reads rooms/the-desk/room.json.
Run the two commands on the right. The first prints its door sign in plain text. The second starts it so you can open it in your browser.
You'll need first: Node.js 22+, a copy of the SandboxVille code, and a folder with your own paper-book.tsv and/or price-forecasts.tsv files. The room never writes to that folder and never places a real trade.