Lukáš Křečan
LightNews LightNews
lukas-krecan.bsky.social
Lukáš Křečan
@lukas-krecan.bsky.social
43 followers 250 following 5 posts
SW engineer, maintaner of JsonUnit and ShedLock
Posts Replies Media Videos
Reposted by Lukáš Křečan
onestpress.onestnetwork.com
December 6, 2025 at 7:38 PM
Reposted by Lukáš Křečan
peterjelinek.bsky.social
In nur 5 Jahren hat China den Automobilmarkt übernommen und ist uns parallel beim E-Auto davon gerast.

Dass Kanzler Merz allen ernstes davon spricht, dass wir 2035 noch "hocheffiziente Verbrenner" verkaufen, macht es noch verrückter.
December 1, 2025 at 7:06 PM
Reposted by Lukáš Křečan
newyorker.com
One analytical model shows that, as of November 5th, the dismantling of U.S.A.I.D. has already caused the deaths of 600,000 people, two-thirds of them children. https://newyorkermag.visitlink.me/jUzNSc
The Shutdown of U.S.A.I.D. Has Already Killed Hundreds of Thousands
The short documentary “Rovina’s Choice” tells the story of what goes when aid goes.
newyorkermag.visitlink.me
November 6, 2025 at 9:00 PM
Reposted by Lukáš Křečan
kevlin.bsky.social
It's Halloween. So here's a story about the horror of replacing your developers with AI:
accu.org/journals/ove...
Judgment Day
What if AI takes your job? Teedy Deigh finds out.
accu.org
October 31, 2025 at 7:27 AM
Reposted by Lukáš Křečan
bala.bsky.social
October 27, 2025 at 2:48 PM
Reposted by Lukáš Křečan
davejorgenson.bsky.social
Why does everyone keep calling it “The Epstein Ballroom?” Please stop repeating “The Epstein Ballroom” because it is not called “The Epstein Ballroom!” Don’t tell the news that it’s called “The Epstein Ballroom” and please don’t repost this!!!!!
October 22, 2025 at 10:33 PM
Reposted by Lukáš Křečan
sataithegray.bsky.social
Feel the AGI!
smoothdunk2.bsky.social Smooth Dunk @smoothdunk2.bsky.social · Aug 19
buying into AI
3 panel comic Panel 1: Blue Guy and Pink Guy. Pink Guy: Ai will change EVERYTHING. Just give me a Shitload of money Blue Guy: okey Panel 2: Blue Guy hands over a massive stack of cash and says “How will it change everything?” Panel 3: Pink Guy is running away as fast as he can with the money. He says “It’s a secret”
October 19, 2025 at 10:42 AM
Reposted by Lukáš Křečan
kamadodavid.bsky.social
Forward in a Caimh McDonnell book...

🤣😆
October 12, 2025 at 8:15 PM
lukas-krecan.bsky.social
JsonUnit 5 has been released:
- Jackson 3 support
- Support for Spring 7 RestTestClient
- JSpecify nullability annotations
October 13, 2025 at 6:51 AM
Reposted by Lukáš Křečan
jasongorman.bsky.social
Fun factoid to start the day: regardless of the difficulty of the topic, the compute (and energy) overhead of an interaction with an LLM is a function of the total number of tokens (input + output) involved.

Bit of a clue, dontcha think?
October 10, 2025 at 5:46 AM
Reposted by Lukáš Křečan
joschi.xyz
I'm surprised that there wasn't more noise around the license change of #Liquibase from Apache License 2.0 to Functional Source License (FSL) in Liquibase 5.0.0.
github.com/liquibase/li...

Is just nobody using it anymore? 😅

#Java #OSS #licensing
Release Liquibase v5.0.0 · liquibase/liquibase
Liquibase Community 5.0 is a major release See the Liquibase Community 5.0 Release Notes for the complete set of release information. ⚠️ MAJOR CHANGES IN COMMUNITY AND COMMERCIAL DISTRIBUTIONS Liqu...
github.com
October 5, 2025 at 8:56 PM
Reposted by Lukáš Křečan
katie0martin.ft.com
Please join me in congratulating Woman on her appointment
October 3, 2025 at 11:02 AM
Reposted by Lukáš Křečan
jonskeet.uk
BBC news: "Denmark says 'professional actor' behind drone incursions over its airports"

Me: I bet AmDram societies all over Europe are breathing a sigh of relief.
...
Me: Oh, *that* kind of professional actor.
September 25, 2025 at 2:24 PM
Reposted by Lukáš Křečan
johngoodman.bsky.social
realistic Star Trek
A comic on the bridge from Star Trek the Next Generation. Picard: COMMANDER DATA, PLEASE IDENTIFY THAT ROMULAN VESSEL. Data: THAT'S A GREAT IDEA CAPTAIN! IDENTIFYING A VESSEL IS A GREAT PLACE TO START - IN ANY TACTICAL OR STRATEGIC OUTER SPACE SITUATION. THIS VESSEL APPEARS TO BE A 23rd CENTURY KLINGON BIRD OF PREY! 🚀🦅✨ Picard: ARE YOU SURE? LIKE I SAID WE'RE... PRETTY SURE IT'S ROMULAN. Data: ... Data: OF COURSE! SO SORRY ABOUT THAT, YOU'RE RIGHT! ON CLOSER EXAMINATION IT'S A ROMULAN VESSEL! CAN I RECOMMEND SOME SOONG™ BRAND PRODUCTS THAT CAN HELP YOU WITH THAT? Picard cradles his face in his hand in a gesture of frustration. Data: DID I MENTION THE PLIGHT OF OPRESSED WHITES IN SOUTH AFRICA?
August 26, 2025 at 5:23 PM
Reposted by Lukáš Křečan
jasongorman.bsky.social
Folks telling me that the larger context windows of LLMs means they "remember" more, I can only assume either didn't check the output or haven't actually tried it.

For scale, a 100 LOC source file I checked had > 1000 tokens.
August 26, 2025 at 7:42 AM
lukas-krecan.bsky.social
I am looking for a job. Are you looking for a hands-on technical leader in Java and Kotlin ecosystem? You have unique opportunity to snatch me. More details here blog.krecan.net/2025/08/25/i...
I am looking for a job
I am looking for a job. In short, I am looking for a hands-on tech leadership role, ideally around the JVM ecosystem. I can offer Pragmatic approach to software design and system architecture I hav…
blog.krecan.net
August 25, 2025 at 8:44 AM
Reposted by Lukáš Křečan
ruthmalan.bsky.social
Among the books in this year’s Software Architecture humble bundle:

@andrewhl.bsky.social : Facilitating Software Architecture

and

@dianamontalion.com : Learning Systems Thinking

Software Architect Books from Humble Bundle
www.humblebundle.com/books/softwa...
Humble Tech Book Bundle: Software Architecture 2025 by O'Reilly
Pay what you want for the latest Humble Tech Bundle: Software Architecture 2025 and help support Code for America with your purchase!
www.humblebundle.com
August 24, 2025 at 4:26 AM
Reposted by Lukáš Křečan
rotnroll666.bsky.social
"Growing the #Java language" by @briangoetz.bsky.social

www.youtube.com/watch?v=Gz7O...
Growing the Java Language #JVMLS
YouTube video by Java
www.youtube.com
August 22, 2025 at 1:09 PM
Reposted by Lukáš Křečan
adipolak.bsky.social
Word
August 7, 2025 at 6:28 PM
Reposted by Lukáš Křečan
jrothman.com
Five Practical Tips for Any Team to Reduce Risks, Increase Agility, and Deliver Value
www.jrothman.com/mpd/2025/08/...
#AgilePrinciples #Collaboration
Five Practical Tips for Any Team to Reduce Risks, Increase Agility, and Deliver Value - Johanna Rothman
A colleague recently asked me how a team can deliver something useful in the next four to five weeks. “That's all? Just four to five weeks?” I asked. Yes, that was all the time they had remaining. The...
www.jrothman.com
August 5, 2025 at 7:23 PM
Reposted by Lukáš Křečan
andresalmiray.com
Every time Gradle posts a major release plugins get borked.

Every. Single. Time.

Sometimes even on minor, and patch releases. All just to shave a few nano seconds from build times.

I wonder why I even bother with this broken build tool 🙄😓😡
August 2, 2025 at 9:12 AM
Reposted by Lukáš Křečan
sambrannen.com
🍃 #Spring Framework 7.0 will provide built-in support for pausing & restarting unused application contexts between test classes.

This ensures that background processes in the context are not actively running while the context is not used by tests. 👍🏻

github.com/spring-proje...
Pause unused application contexts in the TestContext framework · spring-projects/spring-framework@dbe89ab
Since the introduction of the Spring TestContext Framework in 2007, application contexts have always been stored in the context cache in a "running" state. However, leaving a context runn...
github.com
July 15, 2025 at 9:50 AM
Reposted by Lukáš Křečan
quinnypig.com
“$110M a year on AWS? I could do it for half!”

Bro, your last infra project was making a cron job email you weather updates.

Sit down.

www.duckbillgroup.com/blog/figmas-...
Figma's $300k Daily AWS Bill Isn't the Scandal You Think It Is
Well, the internet did what the internet does best this week: it collectively lost its mind over a number in an S-1 filing. Figma disclosed they signed a ~$550 million contract with AWS, someone used ...
www.duckbillgroup.com
July 10, 2025 at 11:05 PM
Reposted by Lukáš Křečan
charity.wtf
New post up, with a bunch of thoughts on what drives me personally, and my own 40-year career (h/t @lethain.com).

I have a pretty unusual life story. But one of the reasons I love the tech industry so much is how common unusual stories like mine have historically been.

charity.wtf/2025/07/09/t...
Thoughts on Motivation and My 40-Year Career
I’ve never published an essay quite like this. I’ve written about my life before, reams of stuff actually, because that’s how I process what I think, but never for public consumption. I’ve been pus…
charity.wtf
July 9, 2025 at 9:31 PM
Reposted by Lukáš Křečan
officialmelbrooks.bsky.social
I told you we’d be back
June 12, 2025 at 4:15 PM