Every box on the board is a page with a function: static page, feature, blog, blog article, collection list, collection, product page, or label only for menu items that are not pages. Pages are connected as parents and children, and each branch can be laid out horizontally or vertically to keep large trees readable.
Sections group pages, like frames in Figma. Pages can also store their URL and the number of visits from analytics, so when I redesign an existing site I can see which pages really matter before moving them. Changes are saved automatically, with undo, copy and paste and keyboard shortcuts.