Basic portfolio principle

Home in a community:

Your home can be customized within boundaries (local / community regulations). All homeowners must use standardized services (local roads, utilities, etc.).

This is a basic civic principle.

Project in a portfolio:

Projects can be customized within boundaries (standards). All core and core/dependent projects will leverage standard processes, architecture and infrastructure and organization, but will allow individual flexibility and choices.

This is a basic portfolio principle.