my solution is not never have anything important on my computer, i have a dedicated gaming pc just for my flight simulator. And please just empty that damn mailbox, it is not a storage system for documents and it increase surface of attack if compromised. For the rest just air gap many backups of your most important data.

E.g. keeping your taxes report unencrypted at rest on disk is a dumb idea too or worst a copy of your ID documents.

The “else-hosted” LLM AI is really not my thing, but selfhosted even less…