ToDos

The overview ToDo list, completed ToDos, the details modal and the ToDo editor.

Overview list

The overview ToDo list is ordered by deadline and priority.
It has one Add action and no expanded ToDo block.
ToDo browsing and details belong in the overview. There is no ToDos side drawer.

Layout: checkbox target | wrapping text with an inline deadline and priority line | pen edit target.
Rows have no card or divider, with 4 dp between them.
The 22 dp checkbox overhangs into the list padding, so its box sits on the content edge.
Urgent deadlines and “! High” are red Bold.
Tapping the checkbox only toggles completion.
The top-aligned pen icon opens the editor directly.
Completed rows are muted and struck through.

Completed ToDos sit below open ToDos in a “Completed (count)” section, collapsed by default.
The newest completion is first.
Expanding the section is static, with no animation.
Tapping a completed ToDo's checked box reopens it.
Completed rows keep their details and edit actions.

Settings → ToDos → Keep completed ToDos sets the period with − and + controls and Cancel/Save.
The setting explains that expired ToDos are deleted permanently, and that shortening the period also applies to already completed ToDos.
Server maintenance deletes expired ToDos through sync tombstones. Offline devices catch up when they sync.
Editing a completed ToDo does not restart its retention.
Reopening clears the completion time. Completing it again starts a new period.

One daily notification, the digest, lists the ToDos that need attention. It is scheduled on each device; there is no server push.

ToDo	In the digest
High priority	From 2 days before its due date
Medium priority	From 1 day before its due date
Low priority	On its due date
Overdue	Every day until completed, as “Overdue”
Undated, completed, gone	Never

The digest appears at the reminder time (default 09:00) in the device's time zone. A day with nothing to list shows no notification.
One digest per day. A device that was off or asleep at the reminder time shows one digest when it next runs that day, never one per missed day.
Editing a ToDo after the day's digest does not notify again; the change shows in the next digest.
A reminder time skipped by daylight saving moves to the first valid time after the gap. A repeated time notifies once.
Turning reminders on or changing the time makes today's digest due again, even if one was already shown or was empty: at the new time while it is still ahead today, or right away when it has passed.
The title counts the ToDos: “1 ToDo due”, “4 ToDos due”. Each line is “due: text”, using the rows' wording (“Overdue: Pay rent”, “Today 14:00: Call Anna”, “Tomorrow: Dentist”). Overdue lines come first, then by deadline. Six lines show, then “+N more”.
The lock screen shows only the title.
The notification channel is “ToDo reminders”. Its icon is the ToDos checklist glyph.
Tapping the digest opens the ToDo list: the Todos tab on the phone, the overview with its ToDo sidebar on BOOX. An open ToDo editor stays open.
Reminders show only the signed-in account's ToDos. Signing out turns them off and removes a shown digest.
There is no per-ToDo snooze or mute.

Tapping a ToDo row opens a bounded, scrollable details modal.
It shows the full text, saved handwriting, status, deadline, priority and source.
The task text is the most prominent element.
Status, Due date and Priority are label/value rows in consistent columns.
Creation and edit times are not shown.
A linked meeting or journal note is one full-width outlined destination with a wrapping title. See ListCard.
When the linked notes are gone, the source title stays with an unavailable state.
Source navigation happens from the details modal.
The modal has × and a single Edit action.
Edit closes the details, then opens the editor.

Handwriting tools, text and metadata are separate areas.
The tools (Pen, Eraser | Undo, Clear ink, Convert to text) sit inside the pad frame, above the writing surface.
The Text field has its label above it.
Due date and due time sit side by side, above the Today / Tomorrow / Next week / No date chips.
Priority is a Low / Medium / High segmented control.
Metadata sections are 24 dp apart.
Both devices use the same layout.
Creating a ToDo from a journal or meeting-note selection opens the editor directly.
Save and Cancel then return to that same note, without opening a list.

ToDo overviews keep metadata and handwriting counts only.
Saved ink samples load only for an opened editor or a details preview.
The details modal holds its loaded and fitted preview samples within the shared memory estimate, and releases them when it closes.
While ink loads, the handwriting area shows a static loading label.
A failed read offers Retry and never shows empty ink. Close and Cancel stay available.
Editing and Save stay disabled until the ToDo's exact saved revision has loaded.
Toggling completion keeps the stored handwriting without loading it.