Prototype canvas

A local tldraw app that discovers every .html file under mockups/canvases/<slug>/ and renders it as a shape. There is no shape map to edit and no code change needed to add a board.

The app ships with this plugin and is installed outside your project. Your boards stay in your project. sp joins the two, so upgrading the plugin replaces the app and never touches a board you wrote.

Start

sp start

Inside the Super Prototyping app, the canvas is already serving on 127.0.0.1:5173. sp start is for a terminal that does not have the app open, and it refuses a port that already answers rather than reusing it.