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Prepare The Device

Download Ubuntu 18.04 LTS
Download Balena Etcher
Launch Etcher and burn image to SD card.
After burning, remove and reinsert the SD card so macOS mounts it. A system-boot partition will appear.
In Terminal: touch /Volumes/system-boot/ssh to enable SSH access.
Safely eject the volume, remove the SD card, insert into Raspberry Pi.
Connect Raspberry Pi to power and ethernet.

	// This is a quick example of how to use the CoreAudio API and the new Tapping
	// API to create a tap on the default audio device. You need macOS 14.2 or
	// later.

	// Build command:
	// clang -framework Foundation -framework CoreAudio main.m -o tapping

	// License: You're welcome to do whatever you want with this code. If you do
	// something cool please tell me though. I would love to hear about it!

	# iPhone with home button
	xcrun simctl status_bar booted clear
	xcrun simctl status_bar booted override \
	--time "9:41 AM" \
	--wifiBars 3 --cellularBars 4 --operatorName ""
	xcrun simctl spawn booted defaults write com.apple.springboard SBShowBatteryPercentage 1

	# iPhone X
	xcrun simctl status_bar booted clear
	xcrun simctl status_bar booted override --time "9:41" --wifiBars 3 --cellularBars 4

	- (NSArray<NSURL > ) parsePasteboard:(NSPasteboard *)pasteboard
	{
	NSMutableDictionary *trackIDToMetadataMap = [NSMutableDictionary dictionary];
	NSMutableArray *orderedTrackIDs = [NSMutableArray array];

	NSMutableArray *metadataFileURLs = [NSMutableArray array];
	NSMutableArray *otherFileURLs = [NSMutableArray array];

	auto parsePlaylist = ^(NSDictionary *playlist) {
	if (![playlist isKindOfClass:[NSDictionary class]]) {


	static void sOpenScreenRecordingPreferences()
	{
	CFDataRef passThruData = CFBridgingRetain([@"Privacy_ScreenCapture" dataUsingEncoding:NSUTF8StringEncoding]);
	CFArrayRef itemURLs = CFBridgingRetain(@[ [NSURL fileURLWithPath:@"/System/Library/PreferencePanes/Security.prefPane"] ]);

	OSStatus err = noErr;

	AEDesc passThruDesc = {0};
	BOOL needsDispose = NO;

	/*
	During Dark Mode migration for macOS, I found it helpful to have a global hotkey
	which toggled between Light/Dark Mode.

	This hack attempts to do something similar for iOS.

	1) Add your main window in -applicationDidFinishLaunching:
	2) Triple tap the window (I tend to do this near the title bar) to flip between light and dark.
	*/

	import Default.exec

	ExistingCommandMap = { }

	class build_python3(Default.exec.ExecCommand):
	def run(self, cmd=None, kill=False, **kwargs):
	file = cmd

	if file in ExistingCommandMap:
	existing = ExistingCommandMap[file]



	class Envelope {

	constructor(type, strength, fromValue, toValue, sampleCount)
	{
	this._generate(type, strength, fromValue, toValue, sampleCount);
	}

	Note:
	1) These may change in future versions of macOS.
	2) Apple may also add more appearances or control accent colors in the future.
	3) You probably don't want to hardcode color values.
	4) Watch:
	https://developer.apple.com/videos/play/wwdc2018/210
	https://developer.apple.com/videos/play/wwdc2018/218

	All colors specified in the sRGB color space.

	#include <math.h>
	#include <Accelerate/Accelerate.h>

	/* filter signal x with filter h and store the result in output.
	* output must be at least as long as x
	*/

	void
	fft_fir_filter( const float *x,
	unsigned x_length,