How to Track Daily New Users in Mixpanel for Your Dashboard

Hi there. I'm trying to build an insight (to add to a dashboard) where I just want to show each day the number of new users(distinct ids) that have showed up that day. Our setup is basically that we send a single custom event per user per day. It seems like mixpanel is close to being able to do this, but not quite there. Any pointers? I'm still early in my mixpanel journey so im trying things out in posthog for comparison and in there its as simple as using "First-ever occurence" option in their trend builder (see screenshot). Does mixpanel have equivalent functionality?