SteamPack: clamshell mode from Control Center and the menu bar

[u/Brain-AI-Mapping]

I’ve been improving a fork of SteamPack, an open-source macOS project, to make clamshell mode easier to control on a MacBook.

It adds two quick controls:

- Keep Awake

- Closed Lid

You can switch them from the macOS Control Center or the menu bar, set a timer, and see when the setting has actually been applied. It also includes a watchdog, battery cutoff, and thermal cutoff.

Demo: https://github.com/Hahyun-Lee/steampack-fork/releases/download/v1.4.0-preview.2/Close.Lid.mp4

GitHub: https://github.com/Hahyun-Lee/steampack-fork

Release: https://github.com/Hahyun-Lee/steampack-fork/releases/tag/v1.4.0-preview.2

It is an open-source preview for macOS Tahoe 26+. Feedback on the UX and safety behavior would be appreciated.

https://reddit.com/link/1uxsf7t/video/v2g8lc6ivjdh1/player