We use OAuth2 for our auth(entic|oris)ation system.
Currently, the system is making use of the "Password Grant Flow"[0] which was easy to implement and use for verifying concepts during development, but is not recommended for actual web applications. This is because, the "Password Grant Flow"[0] is meant for highly-trusted applications.
Instead, the OAuth2 specification recommends the use of the "Authorisation Code Flow"[1] (possibly with PKCE[2]) for web and mobile applications.
With the "Authorisation Code Flow"[1] in place, we will also have the ability to reuse the auth(entic|oris)ation system for other applications, e.g. the QC App