Earlier quoted context omitted.
My setup is similar and nearly 100% self-hosted, including email, files, AI. If something does not work on Graphene, I will do without it. I also have a Google profile, mostly for testing purposes.
How have you managed to accomplish self-hosted email? I tried similar in 2022 and found it damn near impossible without business static IP or a cloud provider.
If you don't have a static IP you need will want to think about a MX relay service too ~ although mail is surprisingly tolerant of offline MX hosts if you can wait a little bit for your mail.