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@fnky
fnky / ANSI.md
Last active February 9, 2025 11:59
ANSI Escape Codes

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

  • Ctrl-Key: ^[
  • Octal: \033
  • Unicode: \u001b
  • Hexadecimal: \x1B
  • Decimal: 27
@timothyham
timothyham / ipv6guide.md
Last active February 8, 2025 22:23
A Short IPv6 Guide for Home IPv4 Admins

A Short IPv6 Guide for Home IPv4 Admins

This guide is for homelab admins who understand IPv4s well but find setting up IPv6 hard or annoying because things work differently. In some ways, managing an IPv6 network can be simpler than IPv4, one just needs to learn some new concepts and discard some old ones.

Let’s begin.

First of all, there are some concepts that one must unlearn from ipv4:

Concept 1

@veekaybee
veekaybee / normcore-llm.md
Last active February 8, 2025 06:44
Normcore LLM Reads

Anti-hype LLM reading list

Goals: Add links that are reasonable and good explanations of how stuff works. No hype and no vendor content if possible. Practical first-hand accounts of models in prod eagerly sought.

Foundational Concepts

Screenshot 2023-12-18 at 10 40 27 PM

Pre-Transformer Models

#!/usr/bin/sudo ruby
#
# revealer.rb -- Deobfuscate GHE .rb files.
#
# This is simple:
# Every obfuscated file in the GHE VM contains the following code:
#
# > require "ruby_concealer.so"
# > __ruby_concealer__ "..."
@lelandbatey
lelandbatey / whiteboardCleaner.md
Last active January 28, 2025 17:55
Whiteboard Picture Cleaner - Shell one-liner/script to clean up and beautify photos of whiteboards!

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

@shamil
shamil / howto_deb_repackage.txt
Created July 19, 2012 03:29
Howto repackage deb packages
Use folowing steps to repackage dep package:
1: Extract deb package
# dpkg-deb -x <package.deb> <dir>
2: Extract control-information from a package
# dpkg-deb -e <package.deb> <dir/DEBIAN>
3. After completed to make changes to the package, repack the deb
# dpkg-deb -b <dir> <new-package.deb>

How to use 1Password and 2FA with eTrade

IMPORTANT!
As of May 17, 2020, python-vipaccess stopped working for provisioning new Symantec VIP Access tokens (which was its raison d'être).
As of May 27, 2020, it's working again.
It might stop working again. and we might not be able to get it to work again (see #39)

Note: Your password cannot be more than 26 characters for you to use 2FA in general. eTrade makes you enter your 2FA code appened to your password to login and limits the length of password input to 32 characters, thus further restricting the maximum length of your actual password.

@afilini
afilini / shell.nix
Created January 18, 2024 22:04
Repackaging of "widevine-installer" from AsahiLinux for NixOS
let
pkgs = import <nixpkgs> {};
lacrosVersion = "120.0.6098.0";
widevine-installer = pkgs.stdenv.mkDerivation rec {
name = "widevine-installer";
version = "7a3928fe1342fb07d96f61c2b094e3287588958b";
src = pkgs.fetchFromGitHub {
owner = "AsahiLinux";
repo = "${name}";
rev = "${version}";
@rygorous
rygorous / gist:e0f055bfb74e3d5f0af20690759de5a7
Created May 8, 2016 06:54
A bit of background on compilers exploiting signed overflow
Why do compilers even bother with exploiting undefinedness signed overflow? And what are those
mysterious cases where it helps?
A lot of people (myself included) are against transforms that aggressively exploit undefined behavior, but
I think it's useful to know what compiler writers are accomplishing by this.
TL;DR: C doesn't work very well if int!=register width, but (for backwards compat) int is 32-bit on all
major 64-bit targets, and this causes quite hairy problems for code generation and optimization in some
fairly common cases. The signed overflow UB exploitation is an attempt to work around this.
@DavidBuchanan314
DavidBuchanan314 / widevine_fixup.py
Last active September 13, 2024 21:45
Patch aarch64 widevine blobs from ChromeOS to work on non-ChromeOS linux, including platforms with 16K page size like Apple Silicon / Asahi Linux
"""
MIT License
Copyright (c) 2023 David Buchanan
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is