Have nginx for all my reverse proxies, it wasn’t trivial, but I used it for a lot of other things so it’s fine.

I back it up manually to encrypted json, it’s not the right way, but I never had much of a proper backup system, other than zfs snapshots and occasionally mirroring to another zfs pool.

It’s not a lot of extra work once you have the rest of your apps running, it’s fairly low maintenance and mostly just works, but again I haven’t bothered with backups really.

Edit: Running most if not all my services on freebsd as jails, that might have made it easier.

Easier? Yes, definitely. Maybe work on the Vaultwarden stuff in parts, instead of all in one go.

Also, if you’re using Proxmox, you might just back up your whole VM to PBS. That’s how I do it. But that takes a bit of work to set up on its own.

I use bitwarden and the setup was fairly standard with the helper script. I use my own isolated proxy for all my services so that was already built. I haven’t used vaultwarden but if anyone that has used both can tell me the differences I could maybe help out.

Just pay for BitWarden maybe? It’s cheap.

Why not set up backups for the Proxmox VM and be done with it?

Also makes it easy to add offsite backups via the Proxmox Backup Server in the future.