How Factory or ALP Workbench select bootstrap packages?

Hello,

May I ask how do we select packages for “SUSE:ALP:Workbench:1.0”, to make it can be built everything else from itself? Is there scripts to do so?

I notice some revision’s comment like “initial import”, “initial import needed for building eigen3:docs,eigen3”, etc. How do you solve dependency problem? Manually?

Another similar question: May I ask how do you select bootstrap package for “Rings:0-Bootstrap”, “Rings:1-MinimalX”?

Thank you.