Privacy from whom?
I ask because the easiest way to do what you’re asking is to have your local record store sell you shit and pay in cash (that you’ve laundered so the serial numbers don’t match the atm). You can even be like “I’m trying to get away from computers man, can you order me this off eBay?” And guaranteed if you spent a hundred bucks or so on used releases they’ll say “absolutely!”
Of course, you’ll stick out like a sore thumb and have a lie to keep up with, so you’ll not have any real measure of anonymity.
I would recommend people not do that unless they know they need to and again, if you know you need to you’re not asking on lemmy.
Hosting your own secrets not only puts the burden of protecting, providing access to and preserving the secrets entirely on you, but puts a very unique set of hosting goals squarely on you as well.
Even a skilled administrator with significant resources at hand would often be better served by simply using bitwarden instead of hosting vaultwarden.
An example I used in another thread about password managers was a disaster. When your local server is inoperable or destroyed and general local network failure makes your cloud accessible backup unreachable, can you access your secrets safely from a public computer at the fire department, church or refugee center?
Bitwarden works well from public computers and there’s a whole guide for doing it as safely as possible on their website.