List the changing parts
Phone cases, watch pucks, connector positions and wireless-coil geometry change faster than a walnut base. Treat each one as a removable interface rather than permanent furniture.
Keep power serviceable
A clear rear route and accessible strain relief make approved charging leads easier to inspect or replace. Avoid sealing adapters and hubs into spaces without ventilation.
Approve compatibility in writing
Record exact device, case and charger models in the dimensional proof. Future devices still require a new insert check; a modular promise is not a universal-fit claim.