The feature to have Categories as the front page is now available. In a community where users are only interested in a certain category and don’t care about the rest, is there a way to set this up in Discourse? Or possibly a mod or plugin to accomplish this?
For example, each category is a sport, e.g. basketball, football, etc. Upon logging into Discourse, the user goes to football as the default first page defined during sign up or under preferences setting.
Pls be nice. My first post. 
@TopQuark님을 환영합니다!
https://github.com/pfaffman/discourse-custom-homepage-for-groups를 확인해 보세요. 이 플러그인에 대해 Customization > Theme 채널에 게시글을 작성해야 할 것 같습니다. 한 클라이언트는 이 플러그인을 https://github.com/literatecomputing/discourse-ucf-group-assignment와 함께 사용하여, 사용자가 사용자 정의 필드에서 값을 선택하면 자동으로 해당 그룹에 할당되도록 하고, 테마 컴포넌트는 이 정보를 바탕으로 사용자의 홈 페이지를 선택하게 합니다.
^^^ This is great. A quick look shows this is what I am looking for. 
I have discussed with @sam and @eviltrout an end state where users select just the stuff they want to see (collection of tags / categories) as “their” feed, as in /custom.
We already have the ?tracking path for this:
https://meta.discourse.org/unread?f=tracked → unread in categories you track and topic you track and tags you track
https://meta.discourse.org/new?f=tracked → new
https://meta.discourse.org/?f=tracked → everything
The support for the special param is there in core, there is just no UI to expose it. We only expose it in “teams”.