Jorin's Logbook

XTDB is a great fit for healthcare applications. Let’s see how to use it in JavaScript land.

Let’s explore the considerations necessary when evolving temporal data over time.

One year ago I still had a MacBook Pro for work and a MacBook Air at home. Now I have a Thinkpad T490 running Manjaro + KDE and a Dell XPS 13 running Ubuntu + Gnome.

I designed stickers. Find me at a conference some day or get in touch if you like them!

Let’s talk about the difference between two kinds of software systems.

XTDB is an innovative database in the Clojure world. What follows is an experience report.

There are so many big problems the world faces today. We hear about them in the news every day. You want to do something good in the world. You want to make a change. But you like building software. What can a software developer do to make the world a better place?

To define our own role and to know what to do next, it helps to sometimes take a break and get an idea of the bigger picture of what’s happening around us.

Is the creation of software a craft or what is it then?

It already happened a few times in the history of computing that the level of abstraction the majority of us work on has been raised.

Let me show you why KeePass is more fun than your cloud-based password manager.

Let’s write a cache in JavaScript and see what it means to keep things simple.

I am unsatisfied whenever I have to look at the logs in a Node.js project. Ratlog is an attempt to fix this.

I’d like to share my experience of getting started with Elixir by writing a simple command line application and introduce the setup for basic Elixir projects.

This article is an attempt at explaining Go as an alternative to Node.js.

Let’s explore how to fulfill your image editing needs right in the terminal.

Let me show you how I automate the setup of my development environment.

Learn how to use channels to model your data flow by building a web crawler in Go.

This is a link to the latest code challenge.

D3 is an excellent tool to visalize geo data. See how to implement a simple example.

I explain my setup to keep backups of my repositories on my own server.

Use the power of Unix to check names for availability.

I definitely know how to brush my teeth! Or do I? How long does it take to master brushing your teeth?

I used the Unix shell to get some insight into my most-used shell commands.

This is a quick explanation of a way to repeat text in Unix using seq and xargs.

I wrote an small search engine in Python to demonstrate basic concepts of searching.

I’m excited about the future of HTTPS. And I did an experiment where I only used HTTPS for one month. In this post I share the results of this experiment.

I explain how I automated the deployment of an open source project with Travis CI.

I will explain a quick-tip to open files in your editor after you found them using grep.

Here’s a quick-tip to fix a broken zip file.

Here is a quick-tip to see how many lines a Git project contains.

I wrote a little script to make it easier to edit encrypted files. Would be happy about any help to improve this script.

Docker and Boom helped me to emulate production conditions and track down a tricky bug.

An introduction to interesting ideas in React world

This is a summary of my impressions of experimenting with Ruby and Go.

If you want to open source a project you don’t want it to contain any sensitive data. I would like to share my workflow to achieve this.

I created this little experiment to find out about the tools and workflows of other developers.

When working with new technologies there are always some surprises and it might be a good idea to take a moment after the work is done to think about what was good and what could be done differently.

I built a simple SVG chart including animations without any SVG Javascript library and it’s not as difficult as you might think.

Ruby can be a good choice as scripting language and here is an example doing some video conversion. This might be less trivial to implement as shell script.

I implemented a few image filters using a canvas element.