ITNotes - From Terminal to Cloud

Beyond APT: A Field Guide to Snap, Flatpak, and AppImage

June 4, 2026

Dependency hell is avoidable. Learn how to use Snap, Flatpak, and AppImage to isolate your Linux applications, improve security, and ensure your production services never crash after a system update.

Database

Native MySQL High Availability: A Practical Guide to InnoDB Cluster and Router

June 4, 2026

Ditch the complex third-party HA tools. This guide shows you how to deploy a native MySQL InnoDB Cluster with MySQL Router for automated failover and zero data loss.

Programming

Shipping Cross-Platform: A Production-Grade Guide to Flutter and Dart

June 4, 2026

Ditch the dual-codebase headache. This guide provides a professional roadmap for building, architecting, and deploying production-ready Flutter apps for iOS and Android.

HomeLab

Self-Hosting Penpot on Docker: The Private, Open-Source Figma Alternative

June 4, 2026

Ditch the Figma subscription. Learn how to deploy and optimize Penpot on Docker for a faster, more private design workflow in your HomeLab.

Linux

Reboot Linux in Seconds: Using kexec to Skip BIOS and POST

June 4, 2026

Don't let BIOS and POST cycles ruin your uptime. This guide shows you how to use kexec to reload the Linux kernel instantly, skipping the time-consuming hardware initialization phase.

Linux

Stop Guessing: Use Flame Graphs to Pinpoint Linux CPU Bottlenecks

June 4, 2026

Ditch the guesswork. Learn how to use perf and Flame Graphs to visualize Linux CPU bottlenecks and fix performance issues with precision.

Programming

HTMX: Building Interactive Web Apps Without the JavaScript Fatigue

June 4, 2026

Is your JavaScript bundle out of control? Discover how HTMX simplifies web development by using HTML attributes to handle AJAX and state, allowing you to build fast, interactive apps with minimal code.

Linux

Ditch GRUB for systemd-boot: A Leaner, Faster Way to Boot Linux

June 4, 2026

Tired of slow boot times and complex GRUB configurations? Learn how to switch to systemd-boot, a lightweight and modern UEFI boot manager that simplifies your setup and speeds up your Linux system.

Automating Prompt Optimization with DSPy: Declarative LLM Programming That Replaces Manual Prompt Engineering

June 3, 2026

DSPy lets you define LLM pipelines declaratively — specifying inputs and outputs instead of writing prompts by hand — then automatically optimizes them using labeled examples. This guide covers the trade-offs versus manual prompt engineering and walks through a full working implementation with code examples.