I'm not sure if it's abandon ware but I found a gist which attempted to get pictures from this Korean Kindergarten app for backup which we also use.

I tried it and it only half worked and you had to copy a cookie out of the browser which would expire after a couple of days.

I took it and extended it added a login with selenium or what it is called and now I can run it daily and get those pictures out and into my immich. Instance.

The script was already a couple of years old and outside of Korea nobody uses KidsNote, I made it used ware again: https://git.jeena.net/jeena/kidsnote-backup