After starting marmota.app, the app shows a window that prominently features the editing area: A text editor on the left, and a preview area on the right:
Chenge the text in the editor on the left, and the live preview on the right will update. It always shows how the presentation will render.
Use the menu or the toolbar buttons between the menu and the editing area to save and open presentations, to present, to export to PDF and more.
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