Funcs returns an [rpc.Funcs] with a function table for accessing the manager.

NewManager returns a new system manager.

ErrAllowedMissingDevice is returned by [Manager.DeviceFor] when a device is not available for a service, but the device has been configured with [config.Device.Required] set to false.

ErrNotFound is returned by Store.Get if the item is not found.

Manager is a dex system manager.

Button wraps the button drawing method.

Device is the dex device interface.

Kernel is the RPC kernel interface.

Page is a dex device page of buttons.

Store is a common persistent data store held by the manager.

NewDevice is a new dex device constructor.

NewKernel is a new RPC kernel constructor.