I've been self-hosting this for years now, works flawlessly.
I did too, and liked it until it taught me a valuable lesson about self hosting things. I started using the project while it was still called bitwarden-rs. Apparently they were told to rename by Bitwarden (understandable). My setup was based on their Docker images, and thinking it was the safest option I had set up Watchtower to automatically update to the latest image nightly to get the latest security patches. But…
Better to put everything in git and run your own renovate bot which will create PRs for you to review and also pull in the changelogs to the PR itself so you can check for breaking changes.