Today I got an update information for a new Litchi (beta) app on Google Play. I don't know whether and how well / badly it works, but I will play around with it a bit over the weekend.

New function
- added waypoint mode for Mavic Mini 1 and Mavic Air 2
- misc improvements and bug fixes

The Air2s is not mentioned explicitly. Maybe it works too.

Thanks for sharing.    Interested in seeing what your weekend trial reveals.  

Interesting, quite a long time they promised some updates.....let's see how it works?!?

Thanks for sharing.   - SDK is not being released for Air2S or Mini2 sadly.  

Interesting
Hope to see this for M2 too!