XenServer is the product. Xen is the hypervisor. The confusion has lasted nineteen years: XenSource packages Cambridge’s work, Citrix buys it for half a billion, renames it Citrix Hypervisor, private equity restores the name, and in July 2026 XenServer 9 becomes “Citrix” again and supports every kind of workload — not just desktops. … Read more
In 2003, a hypervisor emerged from Cambridge’s Computer Laboratory and changed how servers were divided up. Xen — type 1, GPLv2, paravirtualization — became the foundation of Amazon EC2, Rackspace, and later Qubes OS. In 2026, Xen Project 4.21 is still the core of XenServer, XCP-ng, and a … Read more
On January 15, 2007, a GmbH in Weinstadt, Germany, released the code of the hypervisor it used with government and banking customers. The product was called VirtualBox. Within a year, it exceeded four million downloads; in February 2008, Sun bought Innotek; in January 2010, Oracle arrived. Nineteen years … Read more
Gitea is the self-hosted forge in Go: Git, PR, issues, registry, and CI/CD in a single binary. Updated guide for Gitea 28.0.0 — the version that dropped the “1.” prefix —, with Docker Compose and MariaDB, 4.1 runner, tea CLI, and the upgrade roadmap from 1.27.
In April 2005, the Linux kernel lost its version control system. The proprietary BitKeeper had taught developers the distributed workflow — and Larry McVoy withdrew the license after Andrew Tridgell reverse-engineered the protocol. Linus Torvalds did not return to tarballs and patches. In about ten days, he wrote Git: tree snapshots, content-addressed … Read more
In August 1993, a 20-year-old Purdue student was frustrated with Softlanding Linux System. Broken packages, a fragile installation, a distribution treated as an afterthought. Instead of continuing to patch SLS, Ian Ashley Murdock (Konstanz, April 28, 1973) announced that he would start from scratch — openly, in the spirit of GNU … Read more
On 25 August 1991, a 21-year-old student in Helsinki told the comp.os.minix group he was doing “a (free) operating system (just a hobby, won't be big and professional like gnu)”. Thirty-five years later, the kernel born from that hobby runs most of the internet servers, … Read more
Around 2013, Google ran the calculation that alarmed Mountain View: if every Android user used Search’s voice commands for three minutes a day on x86 CPUs, the company would have to double its data centers just for inference. Consumer GPUs were still adapted gaming cards. The answer was … Read more
In January 2025, DeepSeek released R1 (and, weeks earlier, V3), competing with o1 and GPT-4o in reasoning — at a fraction of the training and inference cost. The weights were released openly. The trick is not a dataset trick: it is a rewrite of the Transformer’s core, Multi-Head Latent Attention … Read more
In the early 1990s, home video games were still pixels and flat planes. Nintendo did not move to 32-bit CDs: it partnered with Silicon Graphics, miniaturized a Hollywood workstation, and launched a 64-bit cartridge console. This article follows the documentary History of Nintendo 64 1993-Today, from … Read more
