I always thought that CDK is just a fancy CloudFormation template generator. That's why I recently proposed to one of my clients to generate parametrized CloudFormation template for their simple use-case in CDK. Boy was I naive.

I have 100+ tabs open in my mobile browser all the time. I use it as read list eg. whenever I see something interesting which I don't have time to read at that moment, I just open it as new tab and leave as is. Once in a time I get so frustrated by the sheer quantity of the tabs that I want to just want to close my eyes and hit "Close all" button.

Then I remember that this habit of mine once served a real purpose - I've been hoarding articles for the company's newsletter. And then suddenly I don't want to close those but I want to pick few and send them to someone who might find it interesting to read it.

In this article I am going to try to explain how much compute cost at AWS. I will compare three options: EC2, Fargate and Lambda.

Last year AWS announced that you can use Egress-only Internet Gateway to route the traffic out of VPC without need for NAT Gateway. For free. The only gotcha is that it needs to be IPv6 traffic.

This way you can finally stop paying for NAT Gateways - if you communicate through IPv6 of course.

In this article we'll go over 3 simple things you can start doing today which have potential to significantly improve your code base.

Node.js 24 runtime is available on AWS Lambda from 25th November 2025. It removes support for callback-based function handlers. In this article I will go through things which you should know before you upgrade your runtime.

First of all, a big shout out to Martin Damovsky for providing re:Watch service where you can rewatch all the sessions from re:Invent 2025.

Two weeks ago I've published Lambda Bun Runtime and Lambda Keep Active CDK constructs which you can download and install from npm. I've also written about those in their respective articles.

Since there is strong community build around Constructs Hub I wanted my constructs to be available there as well. Unfortunatelly for me you need to use projen in order to be picked up by Construct Hub. So I have converted my repositories to projen repositories. This article is about my thorny path.

Let's do one more digest before the madness named AWS re:Invent starts as I think once it is over I will be curating one special digest for all of new AWS releases which I find interesting.

Last Thursday I have attended CodeCon in Žilina. There were various great presentation but one of them stick with me. Fero Volár was talking about his experience with leadership and he mentioned how you can use Talent Dynamics test to build great teams.

He also mentioned how you can complete the questionnaire by asking ChatGTP without actually buying the questionnaire. Of course, I have tested this and it was really interesting.