Denmark’s Strategic Leap Replacing Microsoft Office 365 with LibreOffice for Digital Independence

In the summer of 2025, Denmark’s government put forward a major policy change in its digital infrastructure: moving away from using Microsoft Office 365, and in part, open-source its operations with LibreOffice. Below is an original account of what this entails, why it matters, how it’s being done, and what the risks and opportunities are.

UEFI Secure Boot for Linux Arm64 — where do we stand?

Still exotic for now, but moves are afootArm devices are everywhere today and many of them run Linux. The operating system also powers cloud computing and IT environments all over the world. However, x86 is still the dominant architecture of global computer hardware, where the Unified Extensible Firmware Interface (UEFI) with Secure Boot incorporated is a standard. But what does UEFI look like from an Arm perspective?…

[$] Extending the time-slice-extension discussion

Time-slice extension is a proposed scheduler feature that would allow a
user-space process to request to not be preempted for a short period while
it executes a critical section. It is an idea that has been circulating
for years, but efforts to implement it became
more serious
in February of this year. The latest developer to make an
attempt at time-slice extension is Thomas Gleixner, who has posted a new patch set
with a reworked API. Chances are good that this implementation is close to
what will actually be adopted by the kernel.

Revisiting DDR5-6400 vs. MRDIMM-8800 Performance With Intel Xeon 6 “Granite Rapids”

One of the exciting elements of Intel’s Xeon 6 Granite Rapids launch last year was introducing support for MRDIMMs alongside DDR5-6400 memory support. After the Xeon 6900P series debut I posted some of the first independent DDR5-6400 vs. MRDIMM-8800 benchmarks. One year later, today is a fresh look at the DDR5-6400 vs. MRDIMM-8800 performance for Granite Rapids with new/updated benchmarks, the latest Linux software improvements, and also looking at the impact on power and thermals of MRDIMM memory.