DevOps

Unit testing ensures your Python code works correctly and continues to work as your project evolves. This comprehensive guide covers everything you need to know about unit testing in Python, from basic concepts to advanced techniques.

Docker Model Runner (DMR) is Docker’s official solution for running AI models locally, introduced in April 2025. This cheatsheet provides a quick reference for all essential commands, configurations, and best practices.

Running large language models (LLMs) locally has become increasingly popular for privacy, cost control, and offline capabilities. The landscape shifted significantly in April 2025 when Docker introduced Docker Model Runner (DMR), its official solution for AI model deployment.

Discover how to implement and optimize service mesh architectures using Istio and Linkerd. This guide covers deployment strategies, performance comparisons, security configurations, and best practices for production environments.

In today’s computing landscape, virtualization has become essential for development, testing, and running multiple operating systems. For Linux users seeking a simple, intuitive way to manage virtual machines, GNOME Boxes stands out as a lightweight and user-friendly option that prioritizes ease of use without sacrificing functionality.

Multipass is a lightweight virtual machine manager that makes it easy to create and manage Ubuntu cloud instances on Linux, Windows, and macOS.

NVIDIA DGX Spark is real, on sale Oct 15, 2025, and targeted at CUDA developers needing local LLM work with an integrated NVIDIA AI stack. US MSRP $3,999; UK/DE/JP retail is higher due to VAT and channel. AUD/KRW public sticker prices are not yet widely posted.

The Gemini protocol represents a return to the fundamentals of internet communication-a lightweight, secure, and privacy-respecting alternative to the increasingly complex modern web.

Developers often face the “works on my machine” dilemma due to dependency mismatches, tool versions, or OS differences. Dev Containers in Visual Studio Code (VS Code) solve this elegantly — by letting you develop inside a containerized environment configured specifically for your project.

Here we have a Python Lambda example of SQS Message Processor + REST API with API Key Protection + Terraform script to deploy it for serverless execution.

Here’s a quick info on Write.as / WriteFreely - how it fits into the fediverse, where to get managed hosting, what the usage trend looks like, and how to self-host (plus rough costings).

Proxmox Virtual Environment (Proxmox VE) is an open-source, type-1 hypervisor and datacenter orchestration platform built on Debian.

A quick reference for day‑to‑day PostgreSQL work: connections, SQL syntax, psql meta-commands, performance, JSON, window functions, and more.

For KDE Plasma fans, two Linux distributions frequently come up in discussion: Kubuntu and KDE Neon. They may appear similar - both ship with KDE Plasma as the default desktop, both are based on Ubuntu, and both are friendly to newcomers.

This guide will walk you through the process of changing the static IP address on an Ubuntu Server.

GPU load monitoring applications: nvidia-smi vs nvtop vs nvitop vs KDE plasma systemmonitor.