We had an internal password manager at one company that a small team built for fun once. You could share the password with another team or even a single person.

We had an internal password manager at one company that a small team built for fun once. You could share the password with another team or even a single person. There was also an audit log, and when someone left, they just looked in the audit log and reset those passwords that person ever looked at. But someone eventually created a chrome extension that would fill in the passwords for you... I think the total dev time was somewhere in 4-6 person months. It probably would have been cheaper just to buy a 1password subscription if we had been a small company, because I'm pretty sure a 5k seat subscription for the business would have been waaay more money than 6 months worth of salary, one-time cost.