Of course, to build a great product and scale you need ownership of the design files. For obvious reasons this is how you transfer the design phase into development, however this is also a great resource to have while scaling your product and company.
Future team members will be able to see all our iterations from start to finish, thus sparking ideas and leaving a lasting product impact.
Within the design file is various pages with design iterations (v1, v2, v3, etc.), design system, ux research (interviews, surveys, competitor, etc.), inspiration, archive and more.