Mahmoud Rusty Abdelkader mahmoudimus

Build Emacs-w64 with MSYS2/MinGW-w64 with Native Compilation

Instructions are modified from emacs-w64 Wiki page by zklhp. Many thanks for sharing!

Download the latest MSYS2 from this download page.
Install MSYS2 to, for example, C:\msys2 (make sure no space in path to avoid unwanted problems).
Optionally prettify the MSYS2 console mintty with ~/.minttyrc to make it more pleasing to eyes. Thanks to this awesome theme!

Guide to Using DDRescue to Recover Data

Start command:

ddrescue -d /dev/sda output.img output.mapfile

NOTE: If direct disc access is not available in your system, try raw devices.

Brew Bundle Brewfile Tips

Copyright & License

Unless otherwise noted (either in this file or in a file's copyright section) the contents of this gist are Copyright ©️2020 by Christopher Allen, and are shared under spdx:Creative Commons Attribution Share Alike 4.0 International (CC-BY-SA-4.) open-source license.

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So you want to modify the text of a PDF by hand...

If you, like me, resent every dollar spent on commercial PDF tools, you might want to know how to change the text content of a PDF without having to pay for Adobe Acrobat or another PDF tool. I didn't see an obvious open-source tool that lets you dig into PDF internals, but I did discover a few useful facts about how PDFs are structured that I think may prove useful to others (or myself) in the future. They are recorded here. They are surely not universally applicable --
the PDF standard is truly Byzantine -- but they worked for my case.

(This is a translation of the original article in Japanese by moratorium08.)

(UPDATE (22/3/2019): Added some corrections provided by the original author.)

Writing your own OS to run on a handmade CPU is a pretty ambitious project, but I've managed to get it working pretty well so I'm going to write some notes about how I did it.

	#!/bin/sh

	# Explore:
	# https://github.com/howardabrams/hamacs/blob/main/README-Linux.org
	# https://batsov.com/articles/2021/12/19/building-emacs-from-source-with-pgtk/
	# https://practical.li/blog/build-emacs-from-source-on-debian-linux/
	# https://github.com/konstare/emacs-gcc-pgtk/blob/master/Dockerfile

	# First determine your gcc version with gcc --version,
	# then modify libgccjit-12-dev below to the major version number you have!

	#!/usr/bin/python
	# -- coding: utf-8 --

	"""Script to draw bounding boxes and text from a Tesseract box file.

	The script takes an image TIFF_FILE, draws the text and bounding boxes
	of the corresponding BOX_FILE and saves the resulting OUT_FILE.

	Tesseract box file columns:
	<symbol> <left> <bottom> <right> <top> <page>

	/opt/jabba/jdk/[email protected]/bin/java -Xms30g -Xmx30g -XX:+UseG1GC -XX:+PrintCodeCache -XX:NonProfiledCodeHeapSize=512m -XX:NonNMethodCodeHeapSize=32m -XX:ReservedCodeCacheSize=2g -XX:InitialCodeCacheSize=512m -XX:CodeCacheExpansionSize=2m -XX:+PrintFlagsFinal

	[Global flags]
	int ActiveProcessorCount = -1 {product} {default}
	uintx AdaptiveSizeDecrementScaleFactor = 4 {product} {default}
	uintx AdaptiveSizeMajorGCDecayTimeScale = 10 {product} {default}
	uintx AdaptiveSizePolicyCollectionCostMargin = 50 {product} {default}
	uintx AdaptiveSizePolicyInitializingSteps = 20 {product} {default}
	uintx AdaptiveSizePolicyOutputInterval = 0 {product} {default}
	uintx AdaptiveSizePolicyWeight = 10

	#!/usr/bin/env python3

	import sys
	import struct
	import math

	# Constants
	# Internal (LEB128 buffer)
	MAX_ULEB_SIZE = 256 # Maximum proto size here is 2^7^256

	# ....
	alias sudo="sudo -A"