Ghost · the keep-awake dongle for AI agents
Never interrupt a
coding session again.
Keep your AI agents and long tasks running — no matter what. Plug in Ghost, close the lid, walk away. Your agent run, your build, your overnight sync keeps going. No more open laptops on every desk just to babysit a job.
- Nothing to install · standard USB HID
- Works lid-closed, locked, screen off
- macOS · Windows · Linux
- 14,200+
- developers running Ghost
- 3.4M
- agent-hours kept alive
- 0
- dropped sessions, reported
Compatibility
Keeps running while
the lid is shut.
Coding agents on the top row, long jobs on the bottom.
Ghost doesn't care which one you left running.
Keep AI agents running
Prevent sleep mode. Your coding agents, long builds and overnight tasks stay alive while you're nowhere near the machine.
Close with comfort
Shut your laptop lid and walk away — Ghost keeps the session going. No babysitting a terminal, no fear of losing the run.
Set it and forget it
Plug it in once. Ghost does the rest, every time, with nothing to configure and nothing to remember.
Plug it in and your laptop reads it as a connected display. It never clamshell-sleeps, even on battery. Shut the lid, drop it in your bag, and the agent run keeps going exactly where you left it.
Blue status LED
Slow pulse · long-press to silence
Reversible USB-C 2.0
Bus-powered, < 0.2 W
Etched ghost mark
Laser-etched, not printed
Lanyard loop
Clip it to a bag or keyring
38 × 14 × 6 mm. 7 grams. Brushed-aluminium unibody. It lives on your keyring and you forget it is there, which is exactly the point.
Ghost works at the USB layer, the same way an external monitor keeps a docked laptop awake, except it fits on your keyring.
Plug in Ghost
Connect it to any USB-C port, laptop, dock or hub. No driver, no prompt, no setup screen.
Ghost simulates a display
Your system thinks a monitor is connected. macOS lists it in Displays as a second screen.
Your system stays awake
No sleep. No interruptions. The agent run, the build, the sync keeps going at full speed.
You close, move on, come back
Shut the lid and leave. Your session is still running, and finished, when you return.
No app. No login item. No kernel extension, nothing in your menu bar. Unplug Ghost and your machine sleeps like it always did.
Keep your sessions going, no matter what. The same Friday at six, two ways — once without Ghost, once with it.
You shut the lid and head home
macOS clamshell-sleeps — it's on battery
SSH drops · the agent loses its shell
Back at the desk. The run died at step 3 of 40. Start over.
You shut the lid and head home
Ghost keeps a keyboard + display present — no sleep
The agent finishes · tests pass · PR opened
Back at the desk to a green checkmark and a clean diff
No more laptops fanned open on every desk just to keep a job alive. No more "whose machine is this?" No more babysitting a terminal. Plug in Ghost, close the lid, and let the work finish itself.
Specs & compatibility
Caffeine apps, mouse jigglers, leaving the lid open — why none of them quite get you there, and what Ghost does instead.
Spec sheet
- Connector
- USB-A 2.0 · USB-C · or both (Duo)
- Reports as
- Composite HID + headless display descriptor
- Power draw
- < 0.2 W idle · bus-powered
- OS support
- macOS 12+ · Windows 10/11 · Linux (USB HID)
- Footprint
- 38 × 14 × 6 mm · 7 g
- Status LED
- Single slow pulse · long-press to silence
- Firmware
- USB-DFU updatable · signed images
- In the box
- Ghost · carry pouch · quick-start card · sticker
Privacy
No telemetry. No cloud. No account.
Ghost is a dumb USB device on purpose. It does not connect to the internet. It does not have an account. It does not phone home, ever. Your data, your sessions, your bag — none of it leaves your machine.
- No analytics SDK, no error reporting, no calls home
- No companion cloud — the optional CLI is local-only
- No account to make, no email required
Optional companion CLI · ghostctl
$ ghostctl status
●lid closed · on battery
uptime14h 32m 08s
reporting askeyboard + pointer + display
power draw0.18 W
agentclaude-code · running
firmware1.4.2 (up to date)
$
0
Drivers to install
< 0.2 W
Power Ghost draws
7 g
On your keyring
3 OSes
macOS · Windows · Linux
11,842 desks that close the lid
Indie hackers, platform teams, ML researchers, and the person running six agents at once. They plugged in Ghost and stopped thinking about it.
“Kicked off a big refactor agent on Friday at 6, shut the lid, went home. Came back Monday to a clean PR and passing tests. That was the whole pitch and it just… did it.”
Dario M.
Staff engineer · Linear
“I used to leave my MacBook open on a shelf in the office overnight. My team called it ‘the altar.’ Got Ghost, lid’s been closed for a month, builds still finish.”
Priya R.
Platform team · Vercel
“No app, no menu-bar thing, nothing to update. It shows up as a display, my Mac stops sleeping, done. I keep waiting for the catch.”
Will T.
Indie dev · Solo founder
“Tried caffeinate, tried Amphetamine — both still clamshell-sleep on battery. Ghost is the first thing that actually survives me closing the lid and walking off.”
Hanna L.
Backend engineer · Stripe
“Run four agents at once on this thing. Used to babysit the terminal so the SSH wouldn’t drop. Now I plug in Ghost and go to lunch. Got my afternoons back.”
Marcus B.
ML researcher · Hugging Face
“Bought a Duo because I bounce between a work Mac and a personal Windows laptop. One dongle, both ports, never adapter-hunting at midnight again.”
Sam O.
Full-stack · Replit
“Wish the LED were a touch dimmer at night — long-pressed it and it’s fine now. Other than that it’s the most boring, perfect $39 I’ve spent on my setup.”
Jen K.
SRE · Cloudflare
“Fine-tune run, 11 hours, laptop in my bag on a shelf, plugged in. Woke up to a finished checkpoint instead of a dead session. Ordered two more for the team.”
Theo V.
Applied AI · a Series B fintech
Questions
No wakelock voodoo, no undetectable nonsense. Ghost is a USB accessory that does one boring thing extremely well.
Order
Close the lid. Keep the work.
Ghost is a thumb-sized USB dongle that keeps your laptop awake while it works — so a coding agent, a long build, or an overnight sync never gets cut off when you walk away and shut the lid.
Choose your port
- Free shipping over $35
- 30-night money-back
- 2-year Ghost warranty
For teams
Rolling Ghost out across your engineering org?
Ghost Fleet — 10-packs from $34/unit, asset tags laser-etched on request, NET-30 invoicing, and an MDM-friendly descriptor that does not hide from your inventory.
No more laptops left open around the office. With Ghost, you can close it and walk away.
Ghost Dispatch
Firmware drops, uptime tips, and the occasional war story from a 14-hour agent run. 10% off your first Ghost for signing up.