Avails makes scheduling easier when you and the other person don't share a calendar system like Google or Outlook. The first version is deliberately simple and fully manual. It opens a lightweight UI right over whatever web calendar you already use, so you can scan your week and mark the blocks you actually want to offer for the thing you're trying to schedule.
It's manual on purpose, because you know things your calendar doesn't. Your calendar shows a gap at 2:30, but you know the meeting before it is across town and you'll still be in traffic. Flip it around: that meeting is at home, so a dentist appointment downtown right afterward is impossible, it has to go later in the day. A shared-calendar tool can't see travel time or what a block really means. You can, at a glance.
Someday I'd love this to be automatic, with AI that understands what each event actually is, what your days look like, where you want things to land before and after, and what needs travel time in between. For now, the point is to make the human version fast.