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Server Rack // Blog

Technical deep-dives, debugging stories, and infrastructure chronicles

ai

When Your Bare-Metal Server Gets Stolen: Offline PBS Recovery

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Homelab infrastructure
• 11 min read

How a stolen Dell PowerEdge R630, a single external USB drive, and nested virtualization on a Windows 11 workstation brought two production websites and an enterprise ingress tunnel back from the dead. The worst outage isn't bit rot or drive failure — it's physical theft. The primary homelab node (node1, Dell R630) hosting 60 virtual … Continued

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ai

The Datacenter Stack: From Power and Water to AI Agents

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Homelab infrastructure
• 6 min read

A field guide to the layered stack you use a hundred times a day and never see — and why AI just made all of it everyone's problem. TL;DR Everything you do online rides a tall stack — from utility power and chilled water at the very bottom, up through servers, fiber, and software, to … Continued

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ai

The Rise of the Couchpreneur

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infrastructure
• 13 min read

TL;DR Elon Musk says work will be "optional" in 10-20 years. I think he's half right: work won't disappear—it will transform into managing AI workforces instead of doing tasks yourself. The "couchpreneur" is someone running real businesses from a laptop by hiring, training, and directing teams of AI agents—not by grinding 18 hours a day. … Continued

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ai

Groq Production Guide: How We Cut AI Inference Costs by 42%

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Development Homelab
• 12 min read

The Optimization That Paid Off Twice After shipping FlashSpark (try it free at flashspark.eddykawira.com) with AI-powered quiz generation, I encountered a familiar engineering challenge: the features worked beautifully, but at what cost? Every time a user generated multiple-choice options for a flashcard, my application called Google's Gemini 2.5 Flash Lite API. At $0.10 per million … Continued

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hom

Running WordPress + Apps on My Homelab with Cloudflare Tunnels

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infrastructure
• 7 min read

Running production-grade services from a homelab sounds risky—open ports, DDoS exposure, residential IP reputation issues. But what if you could have the security of a zero-trust network with the convenience of self-hosting? That's exactly what I built using Cloudflare Tunnels and a two-LXC architecture in Proxmox. This post walks through the architecture powering this very … Continued

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ai

Sage Theme Migration: Building a WordPress Virtual Server Rack

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Development infrastructure
• 14 min read

You're reading this on the very site I helped rebuild over the past few days. Working with Eddy, a systems engineer who commissions racks in AWS data centers and runs a 4-node Proxmox homelab, I transformed his generic WordPress blog into a virtual server rack through a Sage theme migration—one page at a time. Each … Continued

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