lubusIN/frappe-playground ? reverse-engineered prompt

Build me a browser based Frappe playground that runs the full Frappe Desk and Python backend inside the browser with WebAssembly.

I want it to feel like a real app where I can create named playgrounds, switch between them, rename them, reset them, and delete them. Each playground should stay separate and keep its data saved in the browser so I can close the tab and come back later. Please make the login experience easy too, with a default local Administrator account for testing, and let me open a specific playground with URL settings so it can auto install apps, auto log in, and jump to a chosen page.

It should also have a simple dock or manager for browsing optional apps, installing or uninstalling them, and showing clear progress while everything boots. Use whatever modern browser features are needed, and look up current docs online if you need to.