Prepare build inputs

Create a builder

A builder is an OCI image with all the inputs needed for a buildpacks build, including the build-time base image, a reference to a runtime base image, a lifecycle, and a set of buildpacks.

Declare source metadata

Declare information about application source code, to be included as metadata in the application image.

Create a stack (deprecated)

A stack is the grouping together of the build and run base images, represented by a unique ID.