I use https://healthchecks.io/ for it and find it useful
you’ve kept server keys backupped in a second location, which makes your backups very secure. During recovery you restore vaultwarden then you export your beloved plaintext thing and you reimport somewhere else. It’s pretty obvious none of these tools would let you backup plaintext shit and it’s a feature man :)
nginx is no acronym or other shit you bad bot :P