Show HN: StayUp – keep a Mac awake (lid closed) while AI agents are working

A new Mac app called StayUp (branded as Duck) allows users to keep their Mac awake with the lid closed while AI agents, model servers, renders, or downloads are running. The app is notarized by Apple and targets developers and users running local AI workloads.

Close the lid. Your AI agent keeps working. Local AI agents, model servers, renders, downloads. Duck keeps work alive.—Duck v. macOS, 2026 Download for Mac → /download Notarized by Apple Apple looked. Duck's still up. Local AI agents, model servers, renders, downloads. Duck keeps work alive.—Duck v. macOS, 2026 Notarized by Apple Apple looked. Duck's still up.