My impression of Vault is that it is more useful for automated situations. How useful is it as a shared password manager? Do you have non-technical folks using it? And if so, how are they interacting with the vault?
No purely non-technical individuals as far as I know, but there are a number of non-developer analysts using it who wouldn't otherwise have much exposure to a console. The flexibility of the access policies and the ability for users to easily/securely share secrets under a path with only their team and be able to have multiple policies for multiple teams all under one roof far outweighs any minor struggle during initial adoption.
Sounds like a great idea for a side project. Build a user friendly interface that leverages a remote vault server on the backend. It's primary use case if definitely for applications.
There are a handful of web-based UIs that have been built. And I believe Hashicorp offers one with their enterprise product. But from what I can gather they all still have a bit more of a learning curve than your average password manager.
