How to add a filter to show tasks that are completed today

In the kanban view of Inbox project I want to list the following tasks,

  1. tasks which are not done
  2. tasks which are done today

For the first one I can use done=false. I am stuck with the second one, any guide is highly appreciated.

For the second one something like doneAt >= now/d && doneAt <= now/d+1 should work.

Thanks! got it working with doneAt >= now/d && doneAt<=now/d+1d