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...
Posts by Tag
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market-data
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.
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.
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.
ai
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...
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.
Could We Just Use Brainfuck for “Vibe Coding”?
A thought experiment on why Brainfuck reveals the fundamental limits of AI-assisted coding.
automation
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...
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.
How I do TLS on the cheap
Free TLS certificates with automated renewal using Certbot, Route 53, and GoCD.
llm
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...
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...
Who Is Legion?
Legion is my AI partner — a self-hosted OpenClaw installation built from source and wired into the tools I actually use.
Could We Just Use Brainfuck for “Vibe Coding”?
A thought experiment on why Brainfuck reveals the fundamental limits of AI-assisted coding.
aws
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.
kubernetes
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.
performance
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.
open-source
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...
Who Is Legion?
Legion is my AI partner — a self-hosted OpenClaw installation built from source and wired into the tools I actually use.
Welcome to oldschool-engineer.dev
Why I’m moving my canonical content to a platform I own — and what that means for readers.
legion
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.
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.
What is, “Tech ‘on the cheap’”?
Introducing the concept of building impressive tech solutions on a budget.
bedrock
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.
hybrid-cloud
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.
redis
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)
Building a real-time stock scanner with FastAPI, RabbitMQ, and Redis — Part 1.
deployment
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.
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.
personal
What’s this blog about?
From the Apple IIe to the USS Nimitz to a 20+ year career in tech — how it all started.
career
What’s this blog about?
From the Apple IIe to the USS Nimitz to a 20+ year career in tech — how it all started.
tls
How I do TLS on the cheap
Free TLS certificates with automated renewal using Certbot, Route 53, and GoCD.
certbot
How I do TLS on the cheap
Free TLS certificates with automated renewal using Certbot, Route 53, and GoCD.
route53
How I do TLS on the cheap
Free TLS certificates with automated renewal using Certbot, Route 53, and GoCD.
github-pages
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.
javascript
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.
dad-jokes
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.
budget
What is, “Tech ‘on the cheap’”?
Introducing the concept of building impressive tech solutions on a budget.
proxmox
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.
networking
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.
infrastructure
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.
mattermost
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.
chatbot
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.
prompt-engineering
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.
cost-optimization
Using hybrid-cloud to cost-optimize AI workloads
Migrating AI workloads from AWS Lambda to on-premises Kubernetes to cut costs.
vibe-coding
Could We Just Use Brainfuck for “Vibe Coding”?
A thought experiment on why Brainfuck reveals the fundamental limits of AI-assisted coding.
brainfuck
Could We Just Use Brainfuck for “Vibe Coding”?
A thought experiment on why Brainfuck reveals the fundamental limits of AI-assisted coding.
litellm
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.
langflow
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.
fastapi
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.
rabbitmq
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.
vue
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.
docker
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.
ansible
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.
opentelemetry
What I Built After Quitting Amazon (Spoiler: It’s a Stock Scanner) — Part 4
How OpenTelemetry exposed a hidden bottleneck and drove architectural improvements.
observability
What I Built After Quitting Amazon (Spoiler: It’s a Stock Scanner) — Part 4
How OpenTelemetry exposed a hidden bottleneck and drove architectural improvements.
testing
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.
documentation
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.
python
Prevent Cache Stampedes with asyncio Events
A two-layer cache-miss prevention strategy using asyncio.Event and Redis locks.
asyncio
Prevent Cache Stampedes with asyncio Events
A two-layer cache-miss prevention strategy using asyncio.Event and Redis locks.
caching
Prevent Cache Stampedes with asyncio Events
A two-layer cache-miss prevention strategy using asyncio.Event and Redis locks.
site-updates
Welcome to oldschool-engineer.dev
Why I’m moving my canonical content to a platform I own — and what that means for readers.
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...
nhi
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...
openclaw
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...
stocks
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...
trading
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...