I’m Michał Łęcicki (aka Maikhel), ruby software engineer from Visuality 👋 I believe self-improvement, responsibility and clean solutions are necessary to get things done: both in software development and real life. Feel free to check some of my posts below. There are also some photos and more information about me.
At some point, in every Rails project, someone says: ‘Hey, our testing dataset is not relevant anymore, maybe we could anonymise production data and use it instead?’. That’s when a tough journey begins: ensuring data privacy, updating scripts, and securing infrastructure. Let’s explore the challenges you might face if you decide to anonymise your production data.
Posted on 18 August 2025
Official certifications aren’t very popular in the Ruby on Rails community, but one is available if you’re interested: the Ruby Association Certified Ruby Programmer Examination. This test checks your knowledge of the Ruby programming language. I decided to give it a try! I passed the exam and want to share my insights to help you do the same.
Posted on 20 December 2024
In the previous blog post on Ruby concurrency, we explored how to spawn many sub-threads with a concurrent-ruby gem. Let’s continue the topic and get to know the Future class much better: its life cycle, state methods, and strategies for error handling.
Posted on 22 October 2024
In the previous blog post, we learned how to create a simple progress bar with Hotwire Turbo and broadcast updates to the frontend. But sometimes, simple solutions aren’t enough. It’s time to get familiar with another part of Hotwire: Stimulus! In this article, I’ll demonstrate how to use Stimulus to handle more complex frontend logic.
Posted on 07 June 2024
Hotwire Turbo constantly changes the way we build backend-frontend integrations. Things that were complicated before, can now be done with a few lines of Ruby code. Let me present how to transmit progress information from background jobs into the frontend.
Posted on 08 April 2024
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