Commands

Windows Keytool CMD:

keytool -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore

Mac Linux Keytool CMD: 

keytool -exportcert -list -v -alias androiddebugkey -keystore ~/.android/debug.keystore

Firestore Rules:

service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if request.auth != null;
    }
  }
}