open-source Archives

Programming tutorial - IT technology blog

Stop Copy-Pasting: Automate PyPI and npm Releases with GitHub Actions

August 15, 2026

Stop the cycle of copy-pasting code between repositories. This guide shows you how to structure, test, and automate the publishing of Python and JavaScript libraries to PyPI and npm.

DevOps

Deploy Unleash on Docker: Self-Host Feature Flags for Zero-Downtime Feature Control and A/B Testing

July 21, 2026

Learn how to self-host Unleash on Docker to implement feature flags and A/B testing without redeploying your production apps. This guide covers a 5-minute quick start, SDK integration in Python and Node.js, gradual rollouts, variant-based A/B testing, and production hardening tips — written from real incident experience.

Database

Deploy FerretDB on Docker: MongoDB-Compatible Open Source Database Built on PostgreSQL

June 5, 2026

FerretDB is an open-source proxy that lets you use MongoDB drivers and tooling while storing data in PostgreSQL — Apache 2.0 licensed, no SSPL. This guide covers deploying FerretDB with Docker Compose, connecting via mongosh and PyMongo, and knowing when it's the right fit for your stack.

Database

Valkey: Install, Configure, and Migrate from Redis After the License Change

June 2, 2026

After Redis Ltd. changed its license to SSPL in 2024, our team migrated three environments to Valkey — the Linux Foundation-backed BSD fork. Six months in, here's the full guide: installation, configuration, and proven zero-downtime migration strategies from Redis to Valkey.

Linux

Secure Server Sync on Linux: Moving from Fragile Cron Jobs to Syncthing

May 4, 2026

Ditch the brittle rsync scripts. Learn how to implement Syncthing for real-time, peer-to-peer file synchronization across your Linux server mesh with zero central failure points.

HomeLab

Deploy FreshRSS on Docker: Self-Host Your Own RSS Reader and Take Back Control of Your News Feed

April 24, 2026

Deploy FreshRSS on Docker to self-host your own RSS reader — no cloud dependency, no algorithm, just the feeds you chose. This guide walks through quick setup, PostgreSQL config, reverse proxy, mobile sync via the Google Reader API, and practical tips from daily use.

HomeLab

Home Assistant: Build Your Own Smart Home on Raspberry Pi or Old Hardware

March 22, 2026

After months of stable production use, I'm sharing my practical guide to building an efficient smart home with Home Assistant. Learn to leverage Raspberry Pi or old hardware for seamless automation and regain control over your home's intelligence.

HomeLab

Supercharge Your Home Network: Building a Powerful Router & Firewall with pfSense/OPNsense

March 22, 2026

Tired of your consumer router's limitations and security gaps? Discover how pfSense or OPNsense can transform your home network into a robust, secure, and highly configurable powerhouse, ideal for any HomeLab enthusiast. This guide covers essential setup, key features, and practical configuration examples.

HomeLab

Proxmox VE: The Free Virtualization Alternative to VMware You Should Be Running

March 9, 2026

Proxmox VE is a free, open-source hypervisor that combines KVM virtual machines and LXC containers in a single web interface — no license required. This guide covers installation, VM creation, snapshots, clustering, and GPU passthrough with real command examples.