I'd find this really helpful right now.
Solution 1, overriding the default in a settings file is the easiest
solution to understand and the fastest to set up, against 2 and 3
standalone.
Solution 2 comes for free with Solution 1 - a user can read from
environment variables via settings files i
Following the end of https://code.djangoproject.com/ticket/2273 over a year
ago, could this be reconsidered please?
By using username__iexact when checking for uniqueness for new usernames,
this wouldn't affect any usernames that already exist, and it's then up to
the administrators to decide i