We look into the new Java version that will be released later this autumn. It has a lot of great performance improvements and good …

We look into what Accessible PDF is and how to create one using PDFBox. We also look at the structure and talk about what is …

I wanted to try out vibe coding, not writing a single line of code, just describing what I wanted using Windsurf and their own model.

We try Windows Sandbox, talk about how it works, and what you can do with it. Sadly, there is a security story attached to a …

In this video I look into Webauthn and all the different technologies that is used in order to authenticate users for a simple login.

Since Cephalacon, I’ve been looking into the disk prediction feature in Ceph. Trying to get it to actually work, sadly, it has …

I wanted to understand why the NTP system has so accurate clocks and what an accurate clock actually means and this is a rabbit hole that you might get stuck in for a while. I don’t want to reiterate the resources I’ve seen so I will link them in this write-up. Time is dependent on […]

In this video, I look into migrating virtualized machines. Both using the normal disk backend and Ceph to see the difference. If you need to move the guest with all the storage devices to a new host. virsh migrate –live –persistent –undefinesource –copy-storage-all –verbose [guest-name] qemu+ssh://node10/system If you need to move the guest with centrally […]

I just bought a 3d printer, and these are my first impressions and thoughts about printing and the result. Save 25% on Coursera …

Dockerize java applications with native code I wanted to figure out how to run Java applications in a minimal Docker image. Using GraalVM this could become a reality with a size of 4 MB image. The application could be found in one of my repositories but the main work force is the Dockerfile below. This […]

Windows 11 Tiny Edition Download Windows 11 from the Microsoft website (https://www.microsoft.com/software-download/windows11) Mount the downloaded ISO image using Windows Explorer. Download Git by going to https://git-scm.com/download/win and the download will start automatically. Install git by running the installer. git clone https://github.com/ntdevlabs/tiny11builder.git cd tiny11builder Next up we need a autounattend.xml file and we can create one using this […]

PHP Profiling In this write up I compare 5 different tools to profile a PHP application both from the console and web. All of them can gather statistics that you later can review. Some of them are online and some of them off line. xdebug Cost: Free Let’s start with the most common one what […]