Discourse에서 Ghost 로그인 플러그인을 만들 수 있을까요?

Hi, I am new here and I have been reading up on all the threads about Ghost-Discourse SSO integration. I am on the hosted Ghost(Pro) plan and wish to set up a hosted Discourse instance with SSO, with Ghost as the source of truth for user auth. Am I right to understand that, currently, my only option is to self-host the SSO middleware app and get it up and running myself?