Hey Rod, I'm considering it, but currently, it is not. I'm unsure about the benefit of open-sourcing an app that is intended to be downloaded via the app stores since it's trivial to have a private fork from where the releases are built.

I have an open-source tool in the works that can validate the encrypted proofs stored on Nostr relays, and I plan to implement finer-grain relay controls for additional security. Additionally, if you have a de-Googled phone, I started publishing an APK, which you can download: https://sovereign-app-apk.s3.us-east-2.amazonaws.com/app-release.apk

Let me know if that addresses any of your concerns about open-source.