AI & ML

Migrating from cron to systemd timers

Cron has run the world’s scheduled jobs for forty years, and on most servers it still works fine. But the moment a job needs structured logging, a con…

TryHackMe - VulnNet Writeup

Platform: TryHackMe Difficulty: Medium Reconnaissance Nmap nmap -sC -sV -A MACHINE-IP -oA nmap Starting Nmap 7.98 at 2026-06-12 06:47 -0400 Nmap scan …

Rebuilding the Hull at Sea

The box that ran everything started dying in April. Not dramatically. Machines almost never die dramatically. It started with instability... the kind …

I Built a Git Sync Tool for My Obsidian Vault

I Built a Git Sync Tool for My Obsidian Vault You write notes, you save them, you forget to push to GitHub. Then your laptop dies, and your notes are …

Linux Fundamentals for Data Engineering

Introduction As a data engineer, most of your work will happen on Linux servers. Whether you are managing databases, running data pipelines, or proces…

My complete self-hosting stack: Docker Compose + hardening scripts I use on Hetzner (sharing everything)

Originally written for r/selfhosted on Reddit — sharing here for the dev.to community. After running my self-hosted setup for 2+ years on a single Het…

Building a Sovereign Home Server: Lessons Learned Running Nextcloud, Euro-Office, and Frigate on a Raspberry Pi 5

A single-board computer like the Raspberry Pi 5 (8GB) can be surprisingly capable when properly optimized. Running a complete NVR with AI object detec…

AI agent runs amok in Fedora and elsewhere

The Ultimate Guide to Distrohopping: How to Hop Safely Without Breaking Your System

A complete step-by-step developer's guide to distrohopping. Learn how to manage backups, automate package installs, use Ventoy, handle partitions, and…

I Packaged the Scripts I Copy to Every New Server Into a $9 Toolkit. Here's What's In It and Why.

Every time I provision a new server — whether it's a $5 DigitalOcean droplet for a side project or a client's production box — there's a set of script…

I was handed a server with no docs and no idea what it was listening on. One command fixed that.

A client handed me SSH access to a server they'd been running for two years. No documentation. No handoff notes. No "here's what's running and why." J…

AppQuickSwitch: Keyboard-Driven App Launcher for macOS and Linux

I've built AppQuickSwitch, a utility for macOS and Linux that lets you launch or switch to applications using your keyboard. On Linux, it can also run…

Linux Fundamentals for Data Engineering

When you are starting out in Data Engineering, it is easy to focus entirely on writing pristine Python code, designing SQL schemas, or learning comple…

Age verification is coming. Free Software can build it right.

In December 2025, Australia became the first country to ban under-16s from social media. Ten platforms, Instagram, TikTok, YouTube, Reddit, X, and the…

Learning DevOps from First Principles: What an EC2 Instance Actually Is

One of the first cloud concepts many people encounter while learning AWS is EC2 . The name sounds technical. The documentation is extensive. And the n…

Same Hardware, Different Experience: Why Linux Feels Faster

A few weeks after switching from Windows to Linux, I noticed something interesting. The hardware had not changed. The processor was the same. The RAM …

Learning DevOps from First Principles: MAC Addresses vs IP Addresses — The Difference Finally Clicked

One of the first networking concepts that confused me was this: Why does a computer need both a MAC address and an IP address? At first glance, they s…

Run ASP Classic on Linux, macOS and Windows

If you have ever found yourself searching for how to run ASP on Linux or trying to figure out how to containerize an old IIS-dependent application, yo…

jumie — локальный ИИ ассистент в терминале

Все мы любим терминал. Но мало кто помнит наизусть все флаги команды find или как правильно распаковать хитрый архив без гугла. Данный инструмент може…

What I Learned as a Real Working Developer

My name is Furqan Akbar. I am a Web Developer and Linux Server Administrator from Srinagar, Kashmir, India. I work as a Server Manager at Elyspace ful…

# Week 1: Linux Fundamentals, Functional Skills & Full-Time Work — What I Learned

What I studied This week I started learning Linux through hands-on challenges while also studying for Functional Skills Level 2 English and Maths. Alo…

Learning DevOps from First Principles: Why Linux and Networking Might Be the Best Place to Start

One question has been occupying my mind recently: If someone wants to learn DevOps, where should they actually begin? The internet offers thousands of…

I'm Furqan Akbar - Web Developer and Linux Server Administrator from Kashmir India

Hi, I am Furqan Akbar, a Web Developer and Linux Server Administrator based in Srinagar, Kashmir, India. I have spent the last 2 plus years keeping pr…

Part 0: Helloworld Gstreamer

In this series, we will have a beginner-friendly introduction to the world of GStreamer. GStreamer is a powerful open-source multimedia framework used…

Run Gemma-4 12B on WSL2 with llama.cpp

1. update WSL environment sudo apt update && sudo apt upgrade -y 2. install dependencies If you don't use -hf option, you don't need to instal…

Linux: The Operating System That Runs the Internet

Pipeline & Prompts | Byte size guides on DevOps, Cloud and AI The Day I Realised Linux Was Everywhere When I first started working in Cloud and In…

How to Back Up Your Server Files and Database (Before You Learn the Hard Way)

There is a special kind of silence that hits you the moment you realize your data is gone. No database. No uploads. No .env . Just an empty folder whe…

Fixing Bluetooth instability on Ubuntu (26.04) caused by Realtek RTL8821CU Wi-Fi/Bluetooth combo chipset

I got a pair of some nice sony 1000xm6 headphones which i wanted to connect to my computer running ubuntu. To connect my headphones with my computer i…

Everything's Green Cap.

My AI told me the job was done. My container said it was running. My firewall said it was up. All three were lying. I run a security homelab out of a …

My Favorite Linux Commands: My Silent Heroes in the Console

For twenty years, I've been immersed in these systems, at the console, staring at that black screen, solving problems and building things. During this…