LLM Arithmetic Reliability Test — 2026-03-23
This test evaluated whether a large language model (LLM) can reliably perform arithmetic by inference — without code execution or a calculator. The results r...
Posts by Category
- AI 5
- Infrastructure 4
- Side Projects 4
- Software Engineering 4
- Meta 3
- Home Lab 1
- Security 1
- Identity 1
AI
I Caught My AI Lying About Math (Confidently)
This morning, my OpenClaw AI assistant computed my trade journal P&L and got it wrong. Not a little wrong. Obviously wrong. Off by 33%, delivered with co...
The NHI Time Bomb — Why AI Agents Are an Identity Crisis Waiting to Happen
AI agents are getting access to credentials faster than your governance processes can track them. Here’s what the NHI explosion actually looks like — and how...
Who Is Legion?
Legion is my AI partner — a self-hosted OpenClaw installation built from source and wired into the tools I actually use.
Live Long and Prompt: Tales from the AI Enterprise
Building Fake Spock — a Mattermost chatbot tuned to behave like a Vulcan and deliver dad jokes.
Infrastructure
What I Built After Quitting Amazon (Spoiler: It’s a Stock Scanner) — Part 3
From Docker Compose to production Kubernetes with Ansible, MetalLB, and cert-manager.
From AWS Lock-In to LLM Freedom: Building a Cost-Effective Hybrid-Cloud AI Stack
Self-hosting LiteLLM, Langflow, and Khoj on Kubernetes while using AWS Bedrock for inference.
Using hybrid-cloud to cost-optimize AI workloads
Migrating AI workloads from AWS Lambda to on-premises Kubernetes to cut costs.
How I do TLS on the cheap
Free TLS certificates with automated renewal using Certbot, Route 53, and GoCD.
Side Projects
Stock Selection: Why News Matters
You can’t trade context you don’t have — and the fifth pillar of stock selection just landed. MDP now has real-time news, sentiment scoring, and a flame syst...
What I Built After Quitting Amazon (Spoiler: It’s a Stock Scanner) — Part 2
Running the stock scanner with Docker Compose — setup, configuration, and first launch.
What I Built After Quitting Amazon (Spoiler: It’s a Stock Scanner)
Building a real-time stock scanner with FastAPI, RabbitMQ, and Redis — Part 1.
Automating Laughter: Building a Random Dad Joke Site in an Hour
Building a random dad joke site in an hour with vanilla HTML and zero frameworks.
Software Engineering
Prevent Cache Stampedes with asyncio Events
A two-layer cache-miss prevention strategy using asyncio.Event and Redis locks.
What I Built After Quitting Amazon (Spoiler: It’s a Stock Scanner) — Part 5
Wrapping up Wave 1 — debugging stories, 1,490 msg/s throughput, and 100% test coverage.
What I Built After Quitting Amazon (Spoiler: It’s a Stock Scanner) — Part 4
How OpenTelemetry exposed a hidden bottleneck and drove architectural improvements.
Could We Just Use Brainfuck for “Vibe Coding”?
A thought experiment on why Brainfuck reveals the fundamental limits of AI-assisted coding.
Meta
Welcome to oldschool-engineer.dev
Why I’m moving my canonical content to a platform I own — and what that means for readers.
What is, “Tech ‘on the cheap’”?
Introducing the concept of building impressive tech solutions on a budget.
What’s this blog about?
From the Apple IIe to the USS Nimitz to a 20+ year career in tech — how it all started.
Home Lab
From “Tech on the Cheap” to “Tech Because I’m Obsessed”
From Raspberry Pi experiments to a full Proxmox cluster — the honest evolution of a home lab.
Security
The NHI Time Bomb — Why AI Agents Are an Identity Crisis Waiting to Happen
AI agents are getting access to credentials faster than your governance processes can track them. Here’s what the NHI explosion actually looks like — and how...
Identity
The NHI Time Bomb — Why AI Agents Are an Identity Crisis Waiting to Happen
AI agents are getting access to credentials faster than your governance processes can track them. Here’s what the NHI explosion actually looks like — and how...