Alex Sinner

These are amazing!

I did not manage to finish part 2 of either Day 9 or 10 of #AdventofCode, so decided to come back to parts 2 after Dec12... Finished part 1 for day 11, and have another concept of a plan on how to solve part 2. Let's see if it works out better than in the past 2 days 😵‍💫

I just completed "Playground" - Day 8 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/8
Properly reading and understanding the problem statement helped ;-)

I just completed "Laboratories" - Day 7 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/7
Part 1 was easy, but led me down some dead ends for part 2 until I realized there was a much simpler and faster way...

I just completed "Trash Compactor" - Day 6 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/6
Part 1 was straightforward, part 2 once I understood the problem statement

I just completed "Cafeteria" - Day 5 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/5
This one was a bit painful, but no pain no gain! #AdventofCode

I just completed "Printing Department" - Day 4 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/4
It helped to have a matrix helper class from last year's AoC :)

I just completed "Lobby" - Day 3 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/3
With the right approach, this one was reasonably straightforward. :)

I just completed "Gift Shop" - Day 2 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/2
I did not manage to finish yesterday, but slowly getting back up to speed. This year I am also publishing my code on GitHub github.com/alexsinner/a...

It is that time of the year again :) #AdventofCode
I just completed "Secret Entrance" - Day 1 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/1

Kiro First Impressions Building a production website with Kiro's AI coding assistant: lessons learned, limitations encountered, and mitigation strategies that worked.

I wrote about my experiment building my new blog with Kiro: alex.sinner.lu/2025/11/kiro...
TL;DR;
- AI assistants are powerful, but lack judgment
- Engineering discipline matters more with AI, not less
-Developers need broader skills: architecture, product thinking, and project management

Clarity of Vision, Sponsorship, Execution Three critical factors determine initiative success: clarity of vision, strong sponsorship, and effective execution. Learn how to avoid common failure patterns.

I just published my first article on my new personal blog where I will share my reflections, observations, and insights after leaving AWS and Amazon after 17+ years.
alex.sinner.lu/2025/11/clar...

Uh oh 😰

RIP Ozzy, Prince of Darkness 😢🦇

Truly a legend who loved his art until the very end.

🤘

Q CLI + MCP servers for your needs is really powerful and useful. I see a future where language and knowledge are disentangled for a better overall experience

AI is "tearing apart" companies, survey finds Study shows that C-suite execs push AI tools that workers don't want to use.

Here is a December survey comparing AI attitudes in C-suite vs non C-suite. The C-suite is for more excited than the other workers at these companies. www.axios.com/2025/03/18/e...

Add to this the fast evolution of LLM versions, breaking backwards compatibility and short deprecation windows etc. You will need new tools and approaches to operational excellence for such systems. This in turn means more engineers operating them.

Is there a term for the opposite of the singularity when humanity achieves superstupidity?

Finished my Lego project for the holidays. These are half the droids you are looking for!

Anyone saying that GenAI could replace software engineers don't understand how software is created (and operated.)

Tool innovations have always make the process of building software faster, cheaper: GenAI and AI agents will also do this.

But these are tools and efficiency gains.

Fantastic winter day with Loki in the woods!

Taking a break from #AdventOfCode. I still have some unfinished business, but 45* out of 50 is pretty good for me. I really struggled with 21 (Keypad Conundrum), and somehow failed to get part B of 16 (Reindeer Maze) right. I manually solved 24 part B (Crossed Wires), but not in code. Good fun!

I just completed "LAN Party" - Day 23 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/23
This one was surprisingly easy. But much appreciated so that I can go back to the robots from Day 21 who were giving me nightmares...

I just completed "Chronospatial Computer" - Day 17 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/17
Finally solved the second part of Day 17. It turned out the solution I did not believe would work actually worked...

I just completed "Monkey Market" - Day 22 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/22
Where the difficulty was not the coding part, but making sense of the 'bananas' description

I just completed "Race Condition" - Day 20 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/20
Interesting change of perspective for part 2. But I remain confused about the example provided being inconsistent with the description (and the solution)

I just completed "Linen Layout" - Day 19 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/19
It helps to remember things in memory...

I just completed "RAM Run" - Day 18 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/18
Luckily this was a bit easier than the previous days. Would have been faster if I managed to properly copy paste the correct value of the part 2 solution...

Completed part 1 for each of day16 and 17 #Adventofcode. Backlog for part 2 will have to wait until the WE

I just completed "Warehouse Woes" - Day 15 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/15
Slowly learning how to visualize things in order to debug...