Apple reportedly developing Harbor app for local AI model inference on Macs

Apple moving into local AI inference is a notable signal that on-device, privacy-preserving compute is being treated as a product category rather than a developer curiosity. The Thunderbolt 5 clustering detail matters most: pooling unified memory across Macs would let Apple-silicon hardware serve larger open-weight models without cloud dependency, which is relevant to teams weighing data-residency constraints. The open question is whether a Claris-side private preview becomes a shipped, supported product, and how open-weight model distribution and management are handled if it does.