BuildStream is a flexible and extensible framework for the modelling of build pipelines in a declarative YAML format, written in python.
These pipelines are composed of abstract elements which perform mutations on on filesystem data as input and output, and are related to eachother by their dependencies.
Basic element types for importing SDKs in the form of tarballs or ostree checkouts, building software components and exporting SDKs or deploying bootable filesystem images will be included in BuildStream, but it is expected that projects forge their own custom elements for doing more elaborate things such as deploying software in special ways.
Here are some resources to help understand the BuildStream format and also to get off the ground installing it on a new host.
The following source types are provided with BuildStream: