---
title: Lights Out
---
# Lights Out

_Controlling your smart home like it's 1991._

<figure>
<img src="/static/img/lightsout_0.2.png" alt="A screenshot of Lights Out running under System 7.5.3"/>
<figcaption>Lights Out running under System 7.5.3.</figcaption>
</figure>

### About
_Lights Out_ is a (minimal) frontend for Home Assistant written for Macintosh System 7 and up. As of right now, you can only control your lights. Support for other actions is slated for a future release.

When you first launch Lights Out, you are asked to enter your Home Assistant server configuration: the host, port, and a long-lived access token (which can be generated via the web frontend, details [here](https://developers.home-assistant.io/docs/api/rest/)). You are then presented with the main window, which has room for three light controls. You can add lights via File ⇒ Add Entity. To remove a light, select it (by clicking anywhere outside the slider) and picking Edit ⇒ Clear.

Lights Out was developed using CodeWarrior 9 Gold on System 7.5.3. In principle, it should work on earlier versions of System 7, but it has not been tested. It has been tested working on OS 9 on real hardware (my iMac G3). It currently requires the use of _Open Transport_ for networking (version 1.1.2 or higher).

### Where can I get it?
Current release: [Lights Out v0.2.4 (154KB StuffIt archive, includes source code)](/static/LightsOut_0.2.4.sit)

Additionally, Lights Out can be found [on AmendHub](https://amendhub.com/cyberslak/lightsout).

### Changelog
Version 0.2.4 (April 21st, 2025):
- Bugfix: properly check for Thread Manager before using it
- Use standard window border for compatibility with earlier System versions

Version 0.2.3 (March 18th, 2025):
- Bugfix: handle missing brightness attribute (happens e.g. when light is physically powered off)
- Bugfix: update scroll position after removing bar in `bar_remove`
- Bugfix: zero `window_info.scrollBar` if the scrollbar is removed

Version 0.2.2 (March 15th, 2025):
- Add LICENSE information

Version 0.2.1 (March 14th, 2025):
- Workaround for inconsistent max brightness in HA

Version 0.2 (March 13th, 2025):
- Support for scrolling so the main window can show >3 entities
- Support for selecting and removing entities
- Add room for drag control at the bottom of the slider
- Properly calculate the new slider value without loss of precision

Version 0.1 (March 10th, 2025):
- Initial release.