BuddyPress.org

To all Mods / Experts,

In the top buddypress.org navigation bar, there are these two tabs “blog” and “community”
“blog” = http://buddypress.org/blog/
“community” = http://buddypress.org/community/

How is that configured? My limited knowledge tells me if I install wordpress at mydomain.com/blog then the buddypress components (groups, members etc) will all go under mydomain.com/blog/groups and mydomain.com/blog/members etc

Or there’s two seperate wordpress installation? one at buddypress.org/blog and another at buddypress.org/community?

Advice appreciated. Thanks.