Give your agent the skill.
Install the Applet skill once. It tells your agent how to create, develop, and publish an applet.
Tell it your idea.
No infrastructure plan required. Start with the thing you wish existed, however specific or strange.
Say yes to publishing.
Your agent builds the app, tests it, and asks before putting it online. Applet takes care of the deployment.
Send someone the link.
You get a real URL for a working app with persistent data. Open it, use it, share it, or ask your agent to improve it.
The URL in this example is illustrative, not an actual deployed app.