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Development tutorial - IT technology blog

Building GraphQL APIs with Node.js and Apollo Server: From Schema to Mutation

By admin May 6, 2026

Learn how to build efficient GraphQL APIs with Node.js and Apollo Server through real-world examples. This guide compares REST vs. GraphQL and shares payload optimization tips.

Git

Forgejo Installation Guide: A Lightweight and More Secure Self-hosted Git Solution than Gitea

By admin May 6, 2026

A detailed guide on installing Forgejo—a lightweight and secure Gitea fork—using Docker Compose. Includes practical tips for optimizing Git workflows in small teams.

VMware

VMDK Shrinking Masterclass: Reclaim Hundreds of GBs for VMware ESXi and Workstation

By admin May 5, 2026

Detailed guide on how to shrink VMDK files in VMware Workstation and ESXi using SDelete, vmkfstools, and dd to reclaim hundreds of gigabytes of disk space.

VMware

Deploying Kubernetes on vSphere with VMware Tanzu: Turning Virtualization into Professional Container Infrastructure

By admin May 5, 2026

A detailed guide on deploying Kubernetes on vSphere using VMware Tanzu. Sharing practical experience on network configuration, storage, and effective cluster management for enterprises.

Centos

Installing Apache Tomcat on CentOS Stream 9: A Real-World Production Guide

By admin May 5, 2026

A detailed guide on installing Apache Tomcat 10 on CentOS Stream 9. Includes practical experience on JVM RAM optimization, user security, and production-ready Systemd configuration.

Database

Database Encryption: Don’t Leave Your Data Exposed with pgcrypto and AES_ENCRYPT

By admin May 5, 2026

Don't let user data leak in plain-text. Learn how to use pgcrypto and AES_ENCRYPT to encrypt sensitive data according to modern security standards.

Development

Why I Chose Drizzle ORM Over Prisma for a Real-World TypeScript Project

By admin May 5, 2026

Drizzle ORM is becoming a top choice for high-performance TypeScript projects. This article shares real-world experiences, compares it with Prisma, and provides an A-Z setup guide.

Ubuntu

Installing MicroK8s on Ubuntu: A Lightweight Kubernetes Solution for Dev and Lab Environments

By admin May 5, 2026

Installing Kubernetes on Ubuntu has never been easier thanks to MicroK8s. This guide covers everything from installation and add-on configuration to troubleshooting firewall issues.

Database

Build Your Own Backend-as-a-Service with Self-hosted Supabase via Docker

By admin May 5, 2026

A guide to setting up self-hosted Supabase using Docker as a Firebase alternative. Includes tips on configuring PostgreSQL, SMTP, and RAM optimization for VPS.

Artificial Intelligence tutorial - IT technology blog

Optimizing AI Systems with DSPy: It’s Time to Stop Manual Prompt Engineering

By admin May 5, 2026

Stop wasting time on manual prompt engineering. Learn how DSPy lets you program LLM logic and automatically boost performance from 65% to 88% using real data.

Building Your Own Mail Server with Postfix and Dovecot on Ubuntu 22.04: Take Full Control of Your Mail Flow

CentOS 7 to AlmaLinux/Rocky Linux Upgrade Guide using ELevate: Fast, Efficient, No Reinstall Needed

Eliminate ‘Noisy Neighbor’ Issues with VMware SIOC: Protecting Bandwidth for Critical VMs

Handling IOMMU Groups with ACS Override Patch: The Ultimate GPU Passthrough Trick for Budget Motherboards

Optimizing Proxmox: How to Create a ‘Gold Standard’ LXC Template for Mass Deployment in 30 Seconds

Optimizing PHP 8.3 on Ubuntu 24.04: Don’t Let Your Server Run Like a Snail

Mastering Python functools: Writing Better, Faster Code

Fixing SELinux Errors on Fedora for Good: Use setroubleshoot and audit2allow Instead of Disabling It

Build Your Own High-Performance, Low-Cost Git Server with Gitea on Fedora: Maximum Security with SELinux

Configuring Multi-WAN Failover on Linux: A “Never-Down” Internet Solution with Keepalived

Building GraphQL APIs with Node.js and Apollo Server: From Schema to Mutation

Forgejo Installation Guide: A Lightweight and More Secure Self-hosted Git Solution than Gitea

VMDK Shrinking Masterclass: Reclaim Hundreds of GBs for VMware ESXi and Workstation

Deploying Kubernetes on vSphere with VMware Tanzu: Turning Virtualization into Professional Container Infrastructure

Installing Apache Tomcat on CentOS Stream 9: A Real-World Production Guide

Database Encryption: Don’t Leave Your Data Exposed with pgcrypto and AES_ENCRYPT

Why I Chose Drizzle ORM Over Prisma for a Real-World TypeScript Project

Installing MicroK8s on Ubuntu: A Lightweight Kubernetes Solution for Dev and Lab Environments

Build Your Own Backend-as-a-Service with Self-hosted Supabase via Docker

Optimizing AI Systems with DSPy: It’s Time to Stop Manual Prompt Engineering