Hi,
First and foremost, awesome work. I had thought about hacking something very similar to what you developed, but I am super happy you guys did it first, and I hope the exposure ShinyProxy brings to the company gives you all much fame and fortune!
Second, what about more than two login boxes at the login screen? For example, [Organization, User name, Password] would allow for finer tuning of user privileges. That is, many people from one organization may use ShinyProxy, so while Harold and Sally both work for Company X and both should have access to report Y only Sally should have privileges to see report Z.
Or, maybe John from Company X and John from Company Y both were lazy enough to choose the password 1234567890. This would not be a problem though, if they also had to put in the company they came from.
Anyway, just a thought of how to fine-tune user privileges and allow ShinyProxy to scale more easily.
-Brian