Szymon Krajewski

W pracy jestem przyzwyczajony do myślenia w przestrzeni rozwiązań.

I’ve experimented with agentic coding for a while and I’ve developed a set of techniques – and a bit of intuition – how to work with agent to deliver actual value without sacrificing my soul as a software engineer.

One of my hobbies is tinkering with electronics and cheap microcontrollers from the ESP family.

My first attempts with LLMs started in ChatGPT and were limited to silly debug prompts: questions containing stack trace, error logs and code snippets.

Moja obecna sieć domowa nadal jest daleka od tego, co uznałbym za stan docelowy.

My current home network is still far away from what I would consider an ideal setup.

Kiedy ostatnim razem byłem zmuszony zainstalować świeży system Linux na moim starym laptopie, miałem okazję dowiedzieć się, jak zmusić GRUB do uruchomienia systemu przy użyciu bootloadera znajdującego się na dysku USB.

The last time I was forced to install a fresh Linux system on my old laptop, I had opportunity to learn how to steer GRUB to boot a system using a bootloader located on a USB drive.

Kiedy ludzie pytają mnie o elementy mojego Smart Home, często spodziewają się czegoś bardzo zaawansowanego technologicznie.

When people ask me about my Smart Home, they often expect something high-tech.

Zacząłem pisać, zanim generatywna sztuczna inteligencja stała się popularna.

I started writing before the generative AI became popular.

W moim domu posiadam mechaniczną wentylację z odzyskiem ciepła napędzaną przez urządzenie Stiebel Eltron V-400.

In my home, I have a mechanical ventilation system with heat recovery powered by Stiebel Eltron V-400.

I couldn’t find any better phrase that describes the approach I’ve learned in the last year.

When I clone a new project, I put the proper email address (e.g., a company email) as an author email in the local config stored in the repository.

Some tasks seem easy when we perform them manually, but new things come to light once we want to automate them.

Some companies send encrypted PDF documents.

Recently I received notification that somebody post information about my article on Twitter (thanks!).

There are a few different methods to enforce a line break in the same paragraph in Markdown syntax: HTML’s <br />, backslash and double space.

I do not use iCloud backup for my iPhone.

I struggled with the strange behavior of dhcpcd on my Raspberry Pi powered by Raspbian.

In one of my side projects in Node, I wanted to test if the object with the date is formatted correctly as a Markdown entry.

We get used to reading about big things – high-level architectural solutions, design patterns in action, or big data processing.

When you ever develop an API in the Symfony framework1, you probably heard of the serializationGroup option.

I use restic as my backup solution, and I haven’t had any problem so far, but recently one of my health checks suddenly stopped working, telling me that something is wrong with my backup.

Problem z Social Mediami leży w ich społecznej części, w której to wszyscy traktujemy siebie wzajemnie jak przyjaciół.

The problem with Social Media lies in its social component, where we treat everyone as a friend.

Last time I’ve experimented with applying various encryption solutions to the public cloud storage such as Google Drive or OneDrive.

This blog is my third approach to regular writing.

I’ve heard a lot of good things about Emacs and Org-mode package as the approach to write and organize plain-text notes.

You’ve probably heard about draw.io which is one of the best free, open-source diagramming software.

When we talk about software development, sooner or later someone starts a discussion about tests.

Before you start your blog, you have to perform a set of essential choices – topics you want to write about, domain name, and the way you’ll publish your content.

Almost every modern computer has a dedicated menu to choose from which device the system should boot.

Sometimes I feel a surge of creativity.

I would like to confess a small lie that I told myself each time when I found something interesting on the Internet, but I didn’t have enough time to read it.

Create connections between notes is the essential part of the whole note-taking process, and for sure, it leads to discovering outstanding ideas in the future.

When I think about a new idea or my next goal in life, I usually think big.

MacOS has a special shortcut I wish I have known them at the beginning of my journey with this system.

The end of the year is presumably a good time for reflection and review.

List of books.

Each professional group has own specialized vocabulary.

For most people, keeping notes and other stuff in text files is ridiculous – tons of services and apps could do it better.

One of the problems during traveling in pair is to take photos of us together.

In this article, I would like to show you how to prepare the script that will back up your important files to the cloud storage using a tool called restic.

The first draft of this article was about the code-style.

The Internet is teeming with services you can take advantage of.

I collect lots of thoughts in my private notes.

During development, you probably take advantage of some extra command-line tools.