jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

dreness

#!/usr/bin/python

import json
import urllib2
from pprint import pprint

# These URLs are discovered by viewing https://developer.apple.com/wwdc/live/#/
# and using the web inspector to find the wwdc-streaming javascript.
# Currently: https://developer.apple.com/wwdc/live/scripts/app/min/wwdc-streaming-0.1.0.min.js
# Search that javascript for "videos.json" and "videos_live.json"

powerc9000

I don't like IDEs. I want to code in my editor and use the command line for everything else. I like the flow better and it feels faster to me.

I also like to have one command to do several things I want to do.

I don't want to open Xcode to create an archive, then open the archive window, then upload the archive to iTunes. It's slow and breaks my flow.

Also, in react native, it's trivial to build Android releases on the command line. I want to create and upload both iOS and android from the command line.

So after hours of searching the internet I found a flow I like for creating and uploading archives for iOS all from the command line

mbuchetics

enum JSON: Decodable {
    case bool(Bool)
    case double(Double)
    case string(String)
    indirect case array([JSON])
    indirect case dictionary([String: JSON])

    init(from decoder: Decoder) throws {
        if let container = try? decoder.container(keyedBy: JSONCodingKeys.self) {
            self = JSON(from: container)

pepasflo

secrets/

chriseidhof

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    var rootVC: UINavigationController? = nil

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        window = UIWindow(frame: UIScreen.main.bounds)

damian-rzeszot

alias plistbuddy=/usr/libexec/PlistBuddy
alias codesign=/usr/bin/codesign


#
# Bundle identifier
#

set_plist_bundle_identifier() {
  local bundle_identifier="$1"

LukeZGD

Downgrade and dualboot status of almost all iOS devices

UPDATED: 2025-09-25

• Reddit mirror: https://www.reddit.com/r/iOSDowngrade/comments/j1x7iv/downgrade_and_dualboot_status_of_almost_all_ios/
• GitHub Gist mirror: https://gist.github.com/LukeZGD/9d781f1b03a69fa46869384a9407a41a
• As of updating this post, there is now a free downgrade tool that utilizes a SEP exploit released for A9-A10X devices, turdus merula: https://sep.lol/
  • Untethered with blobs guide: https://ios.cfw.guide/turdusmerula/
  • Tethered guide: https://ios.cfw.guide/turdusmerula-tethered/
• Save SHSH blobs for signed iOS versions using TSS Saver or blobsaver

zhuowei

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>UnifiedBar</key>
	<dict>
		<key>DisclosureRequired</key>
		<string>ace440ac-b4f6-4b43-aade-02bba1589aef</string>
		<key>Enabled</key>
		<false/>

Dexwell

var content = UNMutableNotificationContent()

content.title = "Title"
content.subtitle = "Subtitle"
content.body = "Text"
content.sound = nil
content.categoryIdentifier = "categoryName"

var personNameComponents = PersonNameComponents()
personNameComponents.nickname = "Sender Name"