

Yo, from one type 1 to another, get yourself some xdrip to replace the dexcom app, its miles ahead and more configurable.
https://github.com/NightscoutFoundation/xDrip
And depending on which omnipod you got, and how technical you are, check out AndroidAPS if you want an open source closed-loop solution.
https://androidaps.readthedocs.io/en/latest/
If you got the omnipod dash you can use it directly with AndroidAPS via Bluetooth.
I use both of these with dexcom G6 and an accu-chek Bluetooth insulin pump, and its amazing vs the commercial solutions.
I can confirm the xdrip app works on grapheneOS, currently use it on a pixel 8a