kconner

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:

milesrichardson

You can inherit the environment variables from PID 1 by iterating over the list of null-terminated strings in /proc/1/environ, parsing the first characters up to the first = as the variable name, setting the remaining value as that variable, and exporting it.

The Code Snippet

This works with multiline environment variables, and environment variables with arbitrary values, like strings, including = or JSON blobs.

Paste this in your current terminal session to inherit the environment variables from PID 1:

0xdevalias

Accessing / Exporting Apple's Screen Time Data

Some notes on accessing / exporting Apple's Screen Time data

Table of Contents

• knowledgeC.db SQLite CoreData Models / Tables
• Unsorted
• See Also

Blaumaus

ABOUT

about:config settings to harden the Firefox browser. Privacy and performance enhancements.
You can use this settings in Tor browser too.
To change these settings type 'about:config' in the url bar. Then search the setting you would like to change and modify the value. Some settings may break certain websites from functioning and rendering normally. Some settings may also make firefox unstable.

I am not liable for any damages/loss of data.

Not all these changes are necessary and will be dependent upon your usage and hardware. Do some research on settings if you don't understand what they do. These settings are best combined with your standard privacy extensions

acouvreur

#!/bin/bash
# Find existing files in download/complete that are not in movies or tvshows.

export DOWNLOAD_FOLDER=path/to/downloads

export MOVIES_FOLDER=path/to/movies
export TVSHOWS_FOLDER=path/to/tvshows

findExistingFile() {
  file=$(find $MOVIES_FOLDER/ $TVSHOWS_FOLDER/ -samefile "$1")

xero

IRC Reference

by xero updated 10.29.24

Highlights

• History
• Glossary
• User Commands
• Nick Management (NickServ)
• Channel Modes
• Chanserv Commands

moyix

#!/bin/bash

gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'

geohot

#!/bin/bash -e
curl -O https://dl.google.com/chrome/mac/stable/GGRO/googlechrome.dmg
hdiutil attach googlechrome.dmg 
SRC=/Volumes/Google\ Chrome/Google\ Chrome.app/Contents/Frameworks/Google\ Chrome\ Framework.framework/Libraries/WidevineCdm
DEST=/Applications/Chromium.app/Contents/Frameworks/Chromium\ Framework.framework/Libraries/
cp -R "$SRC" "$DEST"
hdiutil detach /Volumes/Google\ Chrome/

tomykaira

Partial Evaluation, Futamura Projection And Their Applications

What Partial Evaluation Is?

Partial evaluation means to fix some variables in the given code before execution. With a traditional implementation of a compiler or an interpreter, all variables are replaced with its value on each evaluation of that variable. This is because a variable can change at any timing. This is, however, not always true in actual applications. Almost all of large applications has setting variables and data

treyhunner

import datetime as dt


class datetime(dt.datetime):
    def __divmod__(self, delta):
        seconds = int((self - dt.datetime.min).total_seconds())
        remainder = dt.timedelta(
            seconds=seconds % delta.total_seconds(),
            microseconds=self.microsecond,
        )