I use Vaultwarden in Docker, which is a light-weight Rust implementation of the Bitwarden server. You can just point any of the apps or browser extensions to your server at login and it works seamlessly. The oficial Bitwarden Server is also available, but when last I used it, it was much more resource intensive and had a number of docker containers as dependencies instead of the single container for Vaultwarden.

For UniFi, I use a docker image–currently, I’m using this one.