Julien's DevRel corner

kotlin

Building Command Line Interfaces with Kotlin using picoCLI

In this article, we'll look into use cases where CLIs are a great idea. We'll also dive into best practises, and discover one of the most used library for CLIs in the JVM world : picoCLI.

epaper

Making your own e-paper dashboard for home from scratch!

In this post, I describe the complete setup I used to create my epaper and raspberry pi based dashboard running on node.

wfh

Using the best webcam available on the market : An epoccam and camo comparison

Comparing Elgato's Epoccam and Reincubate's Camo to get the best webcam setup on the market.

development

A simple setup to use LitElement with tailwindcss for small projects

A simple setup to use LitElement with tailwindcss for small projects.

medium

I really hate the Medium experience

I hate the Medium paywalls and you should too

google sheets

Fetching Google Calendar data without OAuth by using Google Scripts

A quick, simple and unsecure way to fetch your calendar events from Google with the help of Google Scripts and without having to use OAuth.

adventofcode

Advent of Code Day 5 : Binary representations and data classes val inits

How I solved Advent of Code day 5, live, and what I learned from it.

adventofcode

Advent of Code Day 4 : Kotlin TIL - require, flatMapIndexed!

How I solved Advent of Code day 4, live, and what I learned from it.

kotlin

Advent of Code Day 3 : Kotlin TIL - drop, filterIndexed

How I solved Advent of Code day 3, live, and what I learned from it.

kotlin

Advent of Code Day 2 : Kotlin TIL - regex destructuring

How I solved Advent of Code day 2, live, and what I learned from it.

kotlin

Advent of Code Day 1 : Kotlin TIL

How I solved Advent of Code day 1, live, and what I learned from it.

development

Advent of Code in Kotlin : Learnings day by day.

The thread of all my solutions, day after day on how I solved Advent of Code puzzles in Kotlin! Every day I record myself, and then revisit and improve my solution to learn from them.

cloud

Thoughts on using Docker in the cloud for side projects

Why are cloud provider barebones Docker container solutions so expensive to run? This makes them virtually unsuitable for side projects.

java

Paginate results in a command line application using picoCLI

In this article, I describe a way to paginate results in picocli applications.

raspberry

Building a wine cellar monitoring system - Part 2 : Creating a native Java library

In this article, we will to create a native library so that our C driver can be used from Java. We will also create a jar that includes the library. We generate our outputs using Github Actions with the help of cross-compilation and even publish our jars there as packages!

iot

Building a wine cellar monitoring system - Part 1 : The hardware and setup

In this series of posts, we'll see how to build a wine cellar monitoring system sending data to the #cloud with some #iot, #timeseries and #microservices on a #raspberrypi. Is that enough buzzwords yet?

docker

Reducing our Carbon Docker image size further!

Second post of the series, we keep diving into more ways to reduce our Docker image size. Let's see how we manage to reach a factor 10!

docker

Reducing Docker's image size while creating an offline version of Carbon.now.sh

Creating a docker image of carbon.now.sh that is as small as possible, step by step so we can create beautiful snippets offline.

java

Jpackage : Overview of one of Java 14's hidden gems

Jpackage : Overview of one of Java 14's hidden gems. In this article we will create an installer for Minecraft using jpackage.

kotlin

Some fun with Kotlin, Exposed and MySQL

Some lessons learned from playing around with Kotlin, Exposed, SQL and the iMDB datasets.

google

My dialog flow and PSD2 talk at @JFuture

This post lists the recording and resources of my IOT Talk at JFuture.

conference

Introvert? Try speaking at a conference!

This post reflects on my experience as an (introvert) conference speaker for the first time earlier this year. I got the chance to speak at JFuture in October. I really loved the experience and some of the things I learnt there really surprised me

kotlin

Introducing Kotlin at ING, a long but rewarding story

This article describes our journey being the first team to run Kotlin in the backend at ING (Netherlands). Hopefully this article will give you some keys on how to introduce it as well in your own large company, and reduce some of the friction you might encounter.

elm

About integrating Firebase in your Elm project

This article introduces an example project on how to integrate Firebase and Elm together

elm

A short introduction to Ports and Flags in Elm

A simple demonstration on how to work with Elm Flags and Ports, with interactive code