Well ok this all works now, which means that all my posting presence is a decent approximation of self-hosted (for varying degrees, I'm not hosting a bsky webapp and I don't know that there'd be a real benefit in doing so at this point)

Mastodon: Self hosted
Blog: Self hosted
Email: Self hosted
Bsky: PDS is self hosted

And backups on two continents so I'm sure this will all be entirely fine