About

Who’s SumGuy?

A Linux sysadmin from the original days. Started as a tech, worked my way through DevOps, then pivoted into SMB consulting — security, compliance, PCI DSS for small and medium businesses, security audits, the whole thing. Somewhere along the way Docker became a daily driver, and AI/LLM went from interesting experiment to actual workload.

Large open source proponent and evangelist. Always have been.

What This Blog Is

Honest answer: it’s my testing ground.

When I’m figuring something out — a new tool, a better way to run containers, an LLM setup that doesn’t require a data center — I write it down. Not to show off, not to hit a word count, but because writing it forces me to actually understand it. And if it helps someone else avoid the same 2 AM rabbit hole I just climbed out of, even better.

Think of it as a living knowledge base. The kind of thing I wished existed when I was starting out — practical, opinionated, skipping the enterprise fluff and getting to what actually works on real hardware.

What You’ll Find Here

• Docker & containers — Compose, Podman, Swarm, registries, the works
• Self-hosting — because your data doesn’t need to live on someone else’s server
• AI & LLMs — local inference, model formats, agents, RAG, and what’s actually useful vs. hype
• Linux — from basics to kernel-level tuning, security hardening, and everything in between
• DevOps & infrastructure — Ansible, Terraform, monitoring, CI/CD, and the tools that make it stick
• Security — practical hardening, not compliance theater (though I know that world too)

No fluff. No “in this article we will explore.” Just the stuff that works.

The Tagline

The art of wasting time. — Because half of what I run in my homelab has no business justification whatsoever, and I’m fine with that.