vaultwarden：开源免费的非官方 Bitwarden 兼容服务器项目
https://github.com/dani-garcia/vaultwarden
Basically full implementation of Bitwarden API is provided including:
- Organizations support
- Attachments and Send
- Vault API support
- Serving the static files for Vault interface
- Website icons API
- Authenticator and U2F support
- YubiKey and Duo support
- Emergency Access