If anyone would like to have the same forum system as this (Discourse) working with MODX, feel free to have a peek at the modDiscourseSSO extra for MODX.
Very cool! Our new authentication system doesn’t use MODX anymore (besides showing a login form), but this is a great thing for everyone else to use.
Wow this is great! Wonderful to see!
What did you use?
Bla bla bla (20 chars)
It’s an in house OAuth2 system (built using existing libraries). There’s a shim between it and discourse to force SSO.