Nearby cards form a section; more than 96 px of clear space separates sections. A chain of nearby cards stays together. The top card in the leftmost column is the header, shown in bold and exported as ##. Other cards become bullets. Moving at least 140 px right starts an indent; siblings read top to bottom.
Boards save automatically in this browser. Reopen the site to continue your latest board; the menu lists your other saved boards. Clearing site data removes local boards. Copy URL or download Markdown to keep a portable snapshot. Anyone with a copied URL can read it; copies are independent.
⌘ also means Ctrl on Windows and Linux.
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