Set up a headless Mac mini or Mac Studio to stay awake and reachable

A Mac mini or Mac Studio tucked away as a home server, build machine, or agent host has one job: stay up and stay reachable. Out of the box, macOS is tuned for a laptop on someone's desk, so it sleeps, waits at login screens, and does not always come back after a power cut. Keepresso's Headless Setup checklist walks you through fixing that.

Open the checklist

In Keepresso, open the Headless Setup checklist. It probes your Mac and marks each item ready, a warning, or a tip, with a link straight to the right System Settings pane or a command you can copy. It only reads your settings; it never changes anything without you.

What it checks, and why each matters

• System sleep off. So the Mac never drops off the network mid-job. Suggests sudo pmset -a sleep 0.
• Wake for network access. So it responds to a connection instead of ignoring it. Suggests sudo pmset -a womp 1.
• Restart after a power failure. So a blip or outage does not leave the Mac off until you drive over to press the button. Suggests sudo pmset -a autorestart 1.
• Automatic login. So after a reboot it reaches the desktop on its own, rather than sitting at the login window where nothing is reachable.
• FileVault. A warning, not a rule: FileVault is great for security, but it stops an unattended Mac at the disk-unlock screen after a reboot, before login or the network come up. For a truly hands-off headless box, that is the tradeoff to understand.
• Remote Login (SSH) and Screen Sharing. Shown as tips, so you can reach the Mac once it is up.

Keeping it awake with the lid or without a screen

• On a Mac mini or Studio there is no lid, so a keep-awake session (or simply system sleep off) is all you need.
• On a MacBook acting as a server, use lid-closed mode so it keeps running with the lid shut, on battery or power, with the screen off.

Reaching it crisply over Screen Sharing

A headless Mac with no monitor hands you a fuzzy, low-resolution desktop over Screen Sharing. Keepresso can fix that without a dummy plug: see Fix blurry Screen Sharing on a headless Mac.

Running agents on it?

If this always-on Mac is going to run AI agents, MyAgens gives it a crew of Claude Code agents you command from Telegram, and Keepresso's AI Agent preset keeps the Mac awake while they run.