geekmonkey

Git

Rethink your git workflow with git-worktree

Git is a powerful tool used by almost everyone in the the tech industry. Worktrees are an often overlooked feature that is presented in this article.

Keyboards

Learning to type Dvorak

Earlier this year, and for the first time in my professional life, I experienced pain caused by repetitive stress injury (RSI). An incorrect desk setup or keyboard can have many detrimental effects on your ability to sustain long hours in front of a computer. With RSI not wanting to go

Advent Of Code

It's bingo time (AoC 2021 Day 4)

Our underwater journey continues. It can get dark underwater, and today is no exception. The only thing we can see apparently is a giant squid that has attached itself to the outside of our submarine. It's only logical that we decide to play Bingo with the squid. Hey, maybe we

Advent Of Code

Advent of Code 2021 - Day 3

Deep under the water, we find ourselves hearing creaking noises. Our submarine handily gives us a diagnostics report. Sadly, as is oft too common in AoC, the report format is complete garbage, to put it mildly. Our puzzle input comes in the form of binary numbers. The task is to

Advent Of Code

Advent of Code 2021 - Day 2

The advent of code is an annual coding challenge in the month of December. This article covers the second day's puzzle with a solution written in Go.

Advent Of Code

Advent of Code 2021 - Day 1

The advent of code is an annual coding challenge in the month of December. This article covers the first day's puzzle with a solution written in Go.

Learn With Me: Julia

Learn With Me: Julia - Bitwise Operators (#4)

This articles covers bitwise operators in Julia and uses them to implement a CRC32 algorithm to validate PNG data chunks.

Learn With Me: Julia

Learn With Me: Julia - Structs and Binary I/O (#3)

Diagrams.net (formerly draw.io) is a fantastic website and tool that allows you to create rich diagrams. The service is entirely free and diagrams can be saved to your Google Drive, Dropbox, or downloaded to your computer. Additionally, diagrams.net allows you to export your diagrams to various formats

Learn With Me: Julia

Learn With Me: Julia - Tools and Learning Resources (#2)

A short collection of tools and resources that help experienced developers learn Julia.

Learn With Me: Julia

Learn With Me: Julia - Introduction (#1)

Welcome to Learn With Me: Julia. A series where you can follow me along my journey of learning Julia, Data Science and Machine Learning. This series is heavily inspired by Learn With Me: Elixir [https://inquisitivedeveloper.com/lwm-elixir-1/], a series by Kevin Peter / The Inquisitive Developer and the format of

Julia

Julia GPU Programming with WSL2

A walkthrough on how to get started with Julia GPU programming under WSL2 on Windows.

Developer PC Build 2021

What components are required to build a good developer machine in 2021? In this article I summarize how I built my most recent machine and how I selected its components.

Julia

Getting Started with Julia Lang

During my early studies and later in my career I had the opportunity to hone my engineering skills in a variety of different programming languages. I started in my early teenage years with QBasic and then progressed on to more advanced languages. In open source projects I've largely worked on

100 Days Of Code

#100DaysOfCode: Julia Edition

If you've been on Twitter recently and have followed someone in tech, chances are you have encountered #100DaysOfCode mentioned at least once. I'm taking him up on the challenge and I'll be coding 100 days in Julia starting April 12th, 2021. Backstory 100 Days of Code got started by Alex

Python

Regular expression matching at scale with Hyperscan

Regular expressions are and always have been ubiquitous in Software Engineering. From input matching to complex parsing, their use is wide-spread. There are many different regular expression engines out there. The most popular by far is PCRE [https://www.pcre.org/], or Perl Compatible Regular Expressions. Go developers will be

PostgreSQL

Optimizing PostgreSQL queries using pg_stat_statements

Postgres comes with a number of really powerful tools to help analyze query and overall database performance. Here's how I usually go about finding and improving query performance.

Ruby on Rails

Deploying your Rails 5 apps to Dokku - Part 1

In this tutorial we will be using a DigitalOcean Droplet to install and run dokku and deploy a Rails app to it. After reading this tutorial, you will be able to: * Set up a DigitalOcean droplet using dokku * Install a dokku plugin to run your database * Deploy a Rails app

Using layouts with jade in express.js

Recently I've been working on a side project[^1] of mine and decided to make use of the jade template engine[^2]. Jade provides nice syntax abstraction over HTML and is the default template engine for express.js[1]. Previous versions of jade/express allowed for automatically loading a layout

Java

Migrating from Maven to Gradle

Java has a long history of using XML configurations for everything. If you are like me, you do not enjoy writing or editing XML files as they are almost never human readable. Adding plugins to your Maven pom.xml usually means copying an XML snippet from a page and manually

Matomo

Automatically create Annotations for your Feeds in Piwik

Piwik 1.10 introduced annotations that you can add to all of your graphs. Annotations can help you in understanding your traffic and mark relevant dates that can explain traffic peaks. Piwik's simple plugin API allows developers to build and add new features easily to Piwik. FeedAnnotation New articles on

Matomo

Annotations and Page Overlay in Piwik 1.10

Piwik 1.10 is about to be released and it is time to take a look at the new major features coming with it. Version 1.9 was released in October 2012, with the latest patch 1.9.2 on November 27th. Since then the developers have implemented incredible new

Matomo

The anatomy of an exploit

Piwik was the target of a hacker who inserted a remote code execution exploit into its distributed download package. In this article, we review how this exploit worked and how the issue was uncovered.

PHP

PHP 5.5 Generators

Among the new features that will be introduced in PHP 5.5, the probably most exiting one is the concept of generators. What are Generators? Lets first look at what Wikipedia has to say about generators: > In computer science, a generator is a special routine that can be used to

Golang

Baking a Pi for Google Go

No that is not a typo in the title! Google Go was first released to the wild in 2009, exactly three years ago [http://google-opensource.blogspot.de/2009/11/hey-ho-lets-go.html]. Since then it has grown from an experimental language to production ready language with Go 1. Go is available

Ruby

Building mruby on the Raspberry Pi

The Raspberry Pi is a credit-card sized computer with 700 MHz (can be overclocked to about 1.1 GHz) and originally 256 MB memory, which has recently received an upgrade to 512 MB. Yukihiro Matz announced mruby in 2011 as Ruby implementation that is easily embeddable into other application and