2FA for Arc

The main reason why I wanted to try Arc is to have a secret storage from which team mates could logon and have the list of passwords. I understand that this is not exactly the purpose of the project (being a mobile secret storage), but since I noticed that the AES256 key is 'static' and needs to be somehow secured and typed/remembered I was wondering if an improvement to the could be to integrate the login with a 2FA mechanism like google authenticator for example? I believe this would increase Arc security.