Press release · Dantrolene
kageroumado Releases Dantrolene, Preventing Mac Screen Lock on the User's Home Wi-Fi Network
Dantrolene is a macOS menu bar utility that stops the screen from locking while the Mac is on the user's home Wi-Fi network, and leaves normal locking in place everywhere else. Free and open source, also available on the Mac App Store.
Published · Updated . Features and availability describe the product at the update date.
On February 21, 2026, kageroumado released Dantrolene, a macOS menu bar utility that prevents the screen from locking while the Mac is connected to the user's home Wi-Fi network. Dantrolene arrived on the Mac App Store on July 20, 2026.
Automatic screen locking protects a Mac in public places, but at home it interrupts reading, movies and work with repeated password prompts. Dantrolene watches which network the Mac is on. On a network the user has marked as home, it holds a display assertion so the lock sequence never begins; on every other network, macOS locks exactly as configured.
At home, Dantrolene still dims and darkens the display after the usual idle time, and any touch brings it back without a password. It detects when another application, such as a video call or presentation, holds its own display assertion and steps aside. Three modes are available: automatic, always on and off.
The home network is identified by name, checked and stored locally; the app sends no data anywhere. Paired with kageroumado's Adrafinil, Dantrolene can also keep a MacBook fully awake with the lid closed while it remains at home.
Key features
- No screen lock on networks marked as home
- Normal locking on every other network
- Simulated sleep: dims on idle, wakes without a password
- Backs off when another app holds the display
- Local-only network detection; no data leaves the Mac
How it compares
| App | Price | License | What it does with the lock | Signal |
|---|---|---|---|---|
| Dantrolene | Free; optional Mac App Store edition US$2.99 | MIT | Keeps the Mac unlocked and dims the display after inactivity | A chosen Wi-Fi network |
| Amphetamine | Free | Proprietary | Can prevent screen locking during a keep-awake session | Trigger: a specific Wi-Fi network |
| Auto Unlock with Apple Watch | Setting in macOS; needs an Apple Watch | Proprietary | Logs you in when you wake the Mac while wearing your watch | Apple Watch nearby |
| BLEUnlock | Free | Source on GitHub; no license file | Unlocks when the device is near; locks when it moves away | Bluetooth LE device (iPhone, Apple Watch, other) |
| Near Lock | Free; Pro in-app purchase adds background mode | Proprietary | Locks when you walk away; unlocks when you return | iPhone over Bluetooth LE |
Availability
Dantrolene is available as a free download from kagerou.glass/dantrolene and GitHub, and on the Mac App Store for US$2.99. It requires macOS 26 or later. The source code is published on GitHub under the MIT License. More information is available at kagerou.glass/dantrolene.
About kageroumado
I'm Mado Kagerou, publishing as kageroumado: an independent researcher and expert Swift engineer with more than ten years of software development experience. As a founder and technical lead, I take projects from architecture through release. My research interests center on computational pharmacology, computational neuroscience and AI safety. My engineering specialties include Apple platform internals, reverse engineering, GPU rendering and local model training.
Research, engineering work and leadership experience
Media contact
kageroumado · [email protected] · kagerou.glass