2025-10-01
How to run sbt tasks with custom settings
When preparing build configuration in sbt, you might want to write custom sbt task. Task in sbt is like a function that can depend on other …
Scala
2025-01-29
Understand your build structure and performance
TL;DR: Today I learned that you can trace your build performance with bloop, and it’s especially easy when using Metals. The setup …
2024-01-05
Hide irrelevant data in your PRs
TL;DR Today I learned that you can hide irrelevant changes from Github PRs. The syntax for .gitattributes can be tricky though.
In my …
2023-12-29
Integration testing with Weaver and Localstack
When creating software that makes heavy use of cloud infrastructure, it is wise to test the integration in the end-to-end fashion. Doing so …
2023-07-11
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 …
2023-05-07
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 …
2023-04-23
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 …
2023-03-16
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 …
2023-03-11
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 …
2023-01-29
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 …
2023-01-14
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 …
2022-12-16
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 …
2022-12-15
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 …
2022-12-13
Wrocław Scala User Group - first meetup
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 …