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A Little Behind the Scenes — Andrew Katana

Home lab notes, project logs, and occasional thoughts.

My Self-Hosted AI Stack Runs on a 15A CircuitNew

~$106/mo, zero API costs, all inference local. Two years, 11 hosts, 6 local LLMs, and one NVIDIA driver rollback that nearly bricked the lab — the real build vs buy math of self-hosting AI at home.

Slop Coding and the Blind Spots AI Won't Tell You About

AI renamed my network interface. It asked for SSH to a box already sharing via NFS. It skipped 3TB of media without an error. These aren't edge cases — they're the current state. Three concepts and five war stories from running AI agents in the trenches.

ask.atkatana.com: Building a RAG-Powered AI from a SQLite Brain

How I built a production RAG pipeline using Open Brain (OB1), ChromaDB, and local LLMs — turning 322 career thoughts into a conversational AI with zero third-party API dependencies.

"AI Lost My Files" — And Other Lies I Told MyselfFeatured

A cautionary tale of AI-assisted data migration, ZFS backups that aren't rsyncs, and why the only bad actor was me. A lightly disguised position paper on managing access with vibe coding tools — born from the real loss of a Jellyfin library during a home lab migration.

I Ran My Job Search with Local AI Agents — Here's What Actually Worked

Three machines, five LLMs, zero API costs — how I built a local AI pipeline to automate my job search, and what it taught me about frameworks, hallucinations, and knowing when to write it yourself.

A Little Behind the Scenes: Building a Self-Hosted AI Hub — Andrew Katana

How and why this site is built on a home lab with local AI — a hands-on exercise in data sovereignty and independence.

Building a Cloud Center of Excellence from Zero

How I built a Cloud Center of Excellence from scratch at Micro Focus — 47 AWS accounts, Guardrails, IAM redesign, SRE transition, and the company's first legacy-to-Fargate SaaS migration.

The SaaS Maturity Model: How We Gave 10 Product Groups a Map to Cloud-Native

The framework that gave 10+ product groups a shared language for cloud adoption — six areas, progressive maturity levels, self-assessment methodology, and why the lab work mattered more than the slides.

From Data Center to ECS/Fargate in 12 Months

The technical deep-dive on migrating a heritage Java workload from over-provisioned data center VMs to AWS ECS Fargate — GitOps, Firecracker microVMs, 8-week migration timeline, and lessons learned.

The IOD Migration: 1,000 VMs, Four Failure Modes, and the Migration That Almost Didn't Happen

The migration that nearly broke the model — 1,000 VMs, eight years of organic growth, hand-operated monitoring, four unowned failure modes, and the organizational politics of cross-continent coordination.

The Local LLM Bet: Why Privacy Will Outlast the Hype

Privacy-first AI deployment, the VM sprawl parallel, and why local LLMs are a market — size depends on how the pay-per-play model executes over the next 3-5 years.

Two Truths and a Lie: Vibe Coding Edition

Two truths and a lie about vibe coding — the 80/20 trap, hallucinations in practice, and why you can actually do something about it.

The People Pipeline: Building SREs from Scratch

How we built SREs from scratch — career pipelines, retention math, compensation advocacy, and why a central CCoE is the right place to develop cloud talent.