Along side Flatpak applications we are exploring how to use runtime in other ways, such as providing a minimal bootable system for anyone to use in their own project and bootable VM images which will use the freedesktop-sdk as a base.
We are active on IRC over at: #freedesktop-sdk on freenode
We have a mailing list here
We are a completely open project and welcome anyone to raise an issue or contribute! You can find our issue tracker here. We welcome anyone to the project, if you can not find an issue please join us on IRC and we will be more than happy to help!