Boards are for reviewing, not for working
A kanban board is an excellent weekly review artefact and a poor daily one. It shows every column at once, which is exactly what you do not need at nine in the morning. The first screen of a tool sets its default behaviour, and a board's default behaviour is scanning.
What Today actually contains
Everything due today, everything overdue, and the meetings already in your calendar, in one column, in time order. Nothing else. If a task is not answerable today it is not on the screen, which is the point.
Overdue is not a punishment
Most tools mark overdue work in red and leave it there to accumulate guilt. Cretask rolls it forward and asks once whether it still matters. Work that keeps rolling without ever being done is a signal, and the app surfaces it as one rather than as decoration.
The board is still there
Projects still have a board and a table, and they are the right tools for a planning session. They are just not the tool for a Tuesday.