Turns out that printing a file on linux is a lot simpler than it is on windows: Use the lp command with the file name. Optionally, you can configure two-sided printing with a command-line option and setup collation in case you need to print multiple copies with more than one page.

Module 5 of 6 for the bitbash workshop is done :D Final module coming right up!

Finishing the coding agent labs. The agent can now write its own labs?!

@defaultconstructor.com the poop shoot for the printer is done! I choose a model where the bucket is on the side of the 3D printer. Works well :D

Today, I'm pre-celebrating my birthday and post-celebrating my wife's birthday. Why? Next year I'll be 42, and that's the perfect age. The answer to everything. This year is just weird. Although 41 is a prime number, I'm looking forward to next year for the number alone.

Exploring Yarp in .NET 10. Going to have some fun building something on top of this really flexible reverse proxy library.

Interesting blogpost on how to improve supply chain management with .NET 10: blognet.tech/2025-11-12-n...

Last week I spend some time writing a sub-agent for Claude Code to help me create lab instructions. It shaved off a couple of hours work already. It's not perfect, but I am reviewing the instructions anyway. Wanna see how I did it? Go check the github repo: github.com/wmeints/codi...

I learned something valuable about using window managers like i3 and hyprland on Linux. Don't pull down a pre-made config. Here's why.

In the meantime, I'm working on the 4th module of the coding agent workshop I'll be teaching at bitbash.nl in January! Come learn how to build your own coding agent :D

Prepared for tonight. Going out on a date with my wife Aafke to a concert we are invited to. Barber tamed the wilderness 🤣

Uh ooh, I published my very first rust crate. A small utility that's really only useful to me, but still ;-)

Interesting video on why you shouldn't try to convince people of an idea. And I should be honest, I try doing that at least once per week. But I try to do better! www.youtube.com/watch?v=fDIL...

Upgraded the coding agent workshop to .NET 10 and progressing through module 3/5 to show people how to build a coding agent with semantic kernel.

Sky Factory 5, relaxing and quite fun to be fair.

Cheesy...

Using a sub-agent to write instructions for my upcoming workshop. This is my workflow: First, create code for the final state of the lab. Next, write outline + introduction to the lab instructions in a markdown file.

And this took only 20 minutes to reach. So much for that plan.

Having a go at spec-driven development with Agent OS v2. This thing is huge but looks really well made. I made a set of templates myself, but this one is way more extensive and documented. Very cool!

Just found an excellent tooling handbook for building python project. Great if you want to get into more professional python development : pydevtools.com/handbook/

Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.

Uh ooh. @defaultconstructor.com made me buy a new 3D printer. Although, ours was broken, and my wife was pondering whether we should replace it with a more modern printer. Ours was 10 years old by now.

Taking some time out of my morning before work to add content to my upcoming Semantic Kernel workshop where we'll build a coding agent in C#!

Setting up ollama to switch the coding agent workshop to gpt-oss so when people can run an LLM on their laptop they can do the workshop fully in open source.

With the recent developments in our country where a politician is actively causing doubts a well working election process I ran another round of critical thinking exercises with one of my kids to show them how important it is to think for yourself.

Interesting, You can generate test JSON web tokens for your ASP.NET Core applications: learn.microsoft.com/en-us/aspnet...

Important paper on LoRA vs full fine-tuning for continual learning: arxiv.org/abs/2410.21228 Although LoRA restricts weight updates to a low-dimensional subspace, which should reduce forgetting and be better suited for continual learning, this paper shows it may not actually be the case. #MLSky

The new agent session panel on github is quite nice I must say. I've been watching policy academy and making code at the same time. Building out ideas like this is quite cool.

Watching the github universe keynote. I sort of missed this because of my visit to Techorama NL. But this is quite a fun thing to watch.

Watching some of my favorite experts on stage, talking about data and AI

Hah, I've successfully riced my linux installation. This calls for more customization. What if I could modify the arch installer? Ricing definition in case you're wondering: www.fastslang.com/ricing

Done configuring everything I need on my desktop. I think it's pretty neat.

I'm at it again, breaking my linux installation with some tweaks to my hyprland configuration. Started completely from scratch, styling the whole thing step by step. It takes a while, but I think the results are better and I have a much better understanding of all the tools involved.

I sponsor open source developers from time to time with a donation. Jesse Duffield is one of them. He makes lazygit, a git client I use daily. Go sponsor open source people! These developers deserve it. It's a thankless job at times. And this shows how much you love what they make.

Okay, I have some work to complete here. But luckily, Claude Code is here to help me get it done. Managed to produce a set of custom instructions and prompts that really help me work out the structure quickly :D

#Maven4, #GenAI, #Java25 - what's not to like?

Getting there slowly :D

While the kids are experimenting, I'm prepping the first set of pages for the upcoming workshop in January

What do you do when you have a day off during the vacation of your kids. You build a minecraft server! We're building machines today people! :D

It's still extremely ugly and buggy, but the agent is coding! It can read files, explore the code base, and then produce some very nice results :D

Pro tip(tm): rename your CLAUDE.md file to AGENTS.md and create a symbolic link for CLAUDE.md that points to AGENTS.md in the same folder. This way you can easily switch between claude, github copilot, and one of the other agents out there.

For me, working with a coding agent via the terminal makes much more sense than having the thing run in vscode or some other IDE. For one, you can run the agent in the context of what you're working on and this could be a subfolder containing a javascript frontend for example.

Replaced the agent framework layer in my coding agent with a pure while loop. Why? The agent framework in semantic kernel makes a lot of assumptions about how the agent runs.

Updating the samples in my book to v1.66 of semantic kernel. This version broke some samples because of a security patch.

Super annoying. Ran updates yesterday on shutdown. Now the nvidia drivers are broken.... again....

Continuing the build on my custom coding agent. I decided to go with a web frontend for the agent as I'm much more proficient at it. I am now using ASP.NET Core as the core of the app. The internals are still in semantic kernel. I'll be testing agent framework later.

Just built the foundations of my own coding agent. It's freaky how well it works, and even more freaky considering the fact that it took me very little effort.

Let me put together the first steps towards my agent development workshop for Bitbash while I wait for the Citrix environment at the client to recover...

I love seeing this more in libraries. The LLMs.txt and an MCP to configure the library. I recommend using the LLMs.txt since you can't verify the MCP, but still.. www.better-auth.com/docs/introdu...

The plan mode in claude code makes a huge difference. I love how my context-engineering prompts help me plan stuff. But it involves using extra files. The plan mode in claude code doesn't involve any extra files, but does the same job. I wish that github copilot had a similar option.