alt Hacker NewsYes, but vaultwarden isn't something you can casually run by yourself without some careful thinking. You are hosting secrets whose longevity is important, so if deploying yourself, take good care of backups and do regular drills, so you validate that the backups work, that they aren't corrupted and that you keep a copy off-site.
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You should be doing regular exports/backups of your vault regardless of how it's hosted. Bitwarden could go belly up tomorrow and lose all their stored vault data.
Is there anything stopping a commercial Vaultwarden host?
IMO a paper print-out of all passwords and backup codes is the most reliable backup. No bit-rot, no third party, and "degradation" is obvious - fire, flood, etc.
Theft is also usually obvious.
If self-hosting, keep at a separate location than your hard drives.
Me and some friends have each been hosting vaultwarden casually for years now. What problem do you see? I mean if the Server goes down and gets completely corrupted, worst case, all my devices still have the version of the vault they recently used. Technically every device has it's own backup of the vault.