Understand the user needs that are being fulfilled by the walled gardens, Build and sell simple, useful and if not open then transparent services or products i

Understand the user needs that are being fulfilled by the walled gardens, Build and sell simple, useful and if not open then transparent services or products in order to foster variety in the face of anticompetitive or monopolistic entities, Help resellers/repackagers/... to configure, integrate or adapt such services even if not my own. Y'know, "do one thing and do it well"-style.