  Beyond edge devices can function off the power grid and without batteries,
enabling them to operate in difficult to access regions. However, energy costly
long-distance communication required for reporting results or offloading
computation becomes a limitation. Here, we reduce this overhead by developing a
beyond edge device which can effectively act as a nearby server to offload
computation. For security reasons, this device must operate on encrypted data,
which incurs a high overhead. We use energy-efficient and intermittent-safe
in-memory computation to enable this encrypted computation, allowing it to
provide a speedup for beyond edge applications within a power budget of a few
milliWatts.
