Introduction to optics in Scala

Throughout this blog I’ve mentioned the benefits of having a strong type system a multiple times. I’ve covered type refinement …

Intermediate's guide to derivations in Scala: Magnolia

In the previous post about Scala derivation I’ve explained the idea of derivation and showed how we can benefit from it by using …

Beginner's guide to derivations in Scala

When learning about Scala, there are a few things that might be surprising. One of such mechanisms is code derivation. With this post I want …

Tech bytes #5 in Kraków recap

Last Thursday (13.04.2023) I had the pleasure to speak at the 5th edition of Tech Bytes in Kraków.

TL;DR This post is a short recap of the …

Beginner's guide to toolkits in Scala

So you are learning Scala and see all the news about scala-cli and it becoming the new scala runner, Scala Toolkit, Typelevel Toolkit and …

TIL: Launching flashlight with Typescript is insane

TL;DR I wanted to launch a flashlight on Android device using Typescript and the experience was far from ideal.

The task

Background: …

Your own Home Assistant add-on

In the previous post in the series I described the process of externalizing you HA (Home Assistant) using my custom addon. Make sure to …

Wrocław Scala User Group #2

In this post I want to share a short recap of first Wrocław Scala User Group (WSUG) meetup. This will be kind of TIL entry, it doesn’t …

Externalize Home Assistant

This is a third post in the Smart Home series. See the previous post if you haven’t already: …

Wrocław Java User Group

In this post I want to share a short recap of first Wrocław Scala Java Group (WSUG) meetup. This will be kind of TIL entry, it doesn’t …

Zigbee with Home Assistant - Smart Home

This is a second post in the Smart Home series. See the previous post if you haven’t already: …

TIL: Debugging Hugo - fixing publish date

TL;DR Today I learned how to fix post visibility by reading the documentation …

Let's build a smart home

New year is always a good excuse to start something new. This post starts a series on building a smart home. It’s not going to be a …

Story of a burned down server

Do you know that feeling, waking up in the morning just to learn your website and self hosted services are down for unknown reason? That …

Personal blog: choosing a platform

Say you want to start a blog, perhaps even join #100DaysToOffload. There are some questions you need to ask yourself. How do I start? Do I …

Using Caddy server as a reverse proxy

In this post I want to share a simple solution for the simple problem I wanted to solve some time ago. The problem definition is following: …

TIL: Markdown presentations with Marp

Lately I’ve been working on preparing learning materials in Scala. Usually when I work on preparing slides for public speaking I would …

Scala type bounds - <: vs <:<

In this short entry I want to shed some light at the difference between <: and <:< in Scala.

TL;DR

• <: is a language feature …

Recruitment homework considered harmful

Job interview is not an easy thing, neither for the candidate, nor the recruiters. From the candidate’s perspective it’s …

TIL: Mimic value class in Typescript

TL;DR Today I learned how to mimic Scala-like value class in Typescript

Doing day to day scala I often use value classes to model the data …