liwangzimo/dsh-calendar-diary

A plain-notebook calendar in the DSH sidebar: a 70-day, Monday-first grid whose cells print that day's note; one note per day is stored in a .xlsx you choose, in the DesktopCal two-column layout (Excel date serial plus free text, newest date first). Clicking a day opens the editor for it, and import/export move that same format in and out, with a preview step and a conflict policy (keep, overwrite, concat or skip).