Open Source Summit + Embedded Linux Conference North America 2026

For many, systemd is the mysterious engine under the hood of nearly every modern Linux distribution. We use it daily—restarting services and checking logs—but how much do we actually know about how it manages our systems? If your relationship with systemctl begins and ends with copy-pasting commands from Stack Overflow, it’s time to look deeper.

This session is a practical, beginner-friendly deep dive into the most widely adopted (and debated) init system in the open-source world. We will move beyond the "init" label to explore systemd as a comprehensive suite of management tools.

Key takeaways include:

The Unit Hierarchy: Understanding .service, .timer, and .mount files.

The Boot Process: How "Targets" replace traditional runlevels.

Hands-on Management: Mastering systemctl for lifecycle management and journalctl for lightning-fast debugging.

DIY Services: A step-by-step guide to writing your first unit file from scratch.

Whether you are a developer looking to containerize applications or a new sysadmin navigating the CLI, this talk will provide the foundational knowledge needed to stop fearing the daemon and start commanding it.