There’s a support thread BitSailor support thread
The main thing you are likely to need are your API keys from https://vault.bitwarden.com/
(Under Security and the top right hand tab “Keys” the access to your API Keys is at the bottom of the page). (NB NOT the KDF section)
The keys need to be entered into Bitsailor when you first run it.
While setup needs care and careful input of the various passwords and codes, it is relatively straightforward.
You will also need to update the Bitwarden CLI from time to time but Bitsailor does this for you. The Bitwarden Command-line Tool | Bitwarden
#bitsailor