firewalld is a firewall service daemon with D-BUS interface managing a dynamic firewall.
There is a documentation for firewalld on fedoraproject.org.
Released tarballs are placed here.
The firewalld git repo has been migrated over to github. Here you can also browse open issues and report new ones.
To get your own copy of the source code, you can use:
$ git clone https://github.com/t-woerner/firewalld.git
Browse the GIT repository
#firewalld on freenode
There are two mailing lists for firewalld: