MakerKit is for the company login
Teams, roles, invitations, i18n, framework choice. That inventory is why MakerKit costs $299 and why serious B2B teams buy it. If your first user is a company with seats, stop here and pay them.
If your first user is a person with a job to finish, the org chart is theatre. You will spend the month on auth, billing, and the first product — the month MakerKit assumed you would spend on tenancy.