These docs cover everything you need to build and integrate software stacks using BuildStream.
They begin with a basic introduction to BuildStream, background information on basic concepts, and a guide to the BuildStream command line interface. Later sections provide detailed information on BuildStream internals.
Github repository: https://github.com/apache/buildstream
Bug Tracking: https://github.com/apache/buildstream/issues
IRC Channel: irc://irc.gnome.org/#buildstream