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@kconner
kconner / macOS Internals.md
Last active July 2, 2025 14:28
macOS Internals

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

#!/usr/bin/env nix-shell
#!nix-shell --pure -p dropbear -p cpio -p gzip -i bash
set -e
set -o pipefail
key_location=/etc/nixos/dropbear_ecda_host_key
target_path=/etc/dropbear/dropbear_ecdsa_host_key
initrd_dest=/boot/secrets_initramfs.gz # must match nix config
@albertbori
albertbori / Installation.md
Last active July 8, 2025 07:20
Automatically disable Wifi when an Ethernet connection (cable) is plugged in on a Mac

Overview

This is a bash script that will automatically turn your wifi off if you connect your computer to an ethernet connection and turn wifi back on when you unplug your ethernet cable/adapter. If you decide to turn wifi on for whatever reason, it will remember that choice. This was improvised from this mac hint to work with Yosemite, and without hard-coding the adapter names. It's supposed to support growl, but I didn't check that part. I did, however, add OSX notification center support. Feel free to fork and fix any issues you encounter.

Most the credit for these changes go to Dave Holland.

Requirements

  • Mac OSX 10+
  • Administrator privileges