Wondering how to enable multi user prodigy with individual logins
By users, I assume you mean annotators, not developers.
Out of the box, Prodigy does not support proper user authentication out of the box as it's so hard to design for all possible users (many companies would use their own):
But there is some basic mult-user authentication:
Another option is to set up a proxy server
This post can also help:
Hope this helps!