palkan

gem 'stackprof', require: false
gem 'ruby-prof', require: false

iscgar

#!/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__ "..."

elad

Start a g2.2xlarge or better (GPU instance) with https://console.aws.amazon.com/ec2/v2/home?region=us-east-1#LaunchInstanceWizard:ami=ami-ffba7b94

Login, username is ubuntu

Update a bunch of stuff and make sure cudnn R2 is used:

luarocks install image
luarocks install loadcaffe
luarocks install torch
export LD_LIBRARY_PATH=/home/ubuntu/torch-distro/install/lib:/home/ubuntu/torch-distro/install/lib:/home/ubuntu/cudnn-6.5-linux-x64-v2-rc2

bullshit

LIRC patch instruction/how-to for USB Infrared Toy from Dangerous Prototypes

This is a instruction to patch the usb infrared toy driver into lirc sources. Most of the work is done by Peter Kooiman

Requirements

• Debian based OS (only tested on rapbian)
• root privileges
• USB Infrared Toy

ndarville

Grab ffmpeg from https://www.ffmpeg.org/download.html

It's a command line tool which means you will have to type things with your keyboard instead of clicking on buttons.

The most trivial operation would be converting gifs:

ffmpeg -i your_gif.gif -c:v libvpx -crf 12 -b:v 500K output.webm

• -crf values can go from 4 to 63. Lower values mean better quality.
• -b:v is the maximum allowed bitrate. Higher means better quality.

Integralist

Lambda: standard

# Creating a lambda
l = lambda { |name| "Hi #{name}!" }

# Executing the lambda
l.call("foo") # => Hi foo!

tadast

# 1) Create your private key (any password will do, we remove it below)

$ cd ~/.ssh
$ openssl genrsa -des3 -out server.orig.key 2048


# 2) Remove the password

$ openssl rsa -in server.orig.key -out server.key

speric

Chapter 1 - Object Oriented Design

The purpose of design is to allow you to do design later, and it's primary goal is to reduce the cost of change.

SOLID Design:

• Single Responsibility Principle: a class should have only a single responsibility
• Open-Closed Principle: Software entities should be open for extension, but closed for modification (inherit instead of modifying existing classes).
• Liskov Substitution: Objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program.
• Interface Segregation: Many client-specific interfaces are better than one general-purpose interface.

jamesyang124

Ruby Metaprogramming Guide

Note: This guide works with Ruby 2.6+ through Ruby 3.x, with modern Ruby 3.x features highlighted where applicable. Core metaprogramming concepts remain consistent across Ruby versions.

This document has been collaboratively updated and modernized through an interactive process with Claude Code, revised with examples, visual diagrams, and Ruby 3.x compatibility.

Table of Contents

1. Key Concepts
2. Self

cupakromer

# No flash messages are set with this controller.
#
# This is a fairly basic / bare controller which does only the basic CRUD.
class BooksController < ApplicationController
  respond_to :html, :xml, :json

  before_action :set_book, only: [:show, :edit, :update, :destroy]

  def index
    respond_with @books = Book.all