Make Proton mail available on k9/thunderbird android. I know you can add proton mail to thunderbird desktop with their bridge but that isn't available on mobile. I think it's a great idea that the thunderbird team makes contact with the proton mail team to let proton mail be used in the coming thunderbird mobile app. I hope that the thunderbird team looks into this and succes with it so that people don't need to use k9/thunderbird and proton mail app anymore on mobile.