Single sign-on integrations with Memberstack would be a gamechanger. I know Memberstack has been in talks with Circle.so ahead of their public launch. I know this forum is powered by Discourse and there are many other opportunities for single sign-on if it becomes possible! Users on any website would be annoyed and confused if they need to sign into a website multiple times for various parts of the website or community.
I know this is in the works, but I wanted to voice my support for this going forward!
