I made PostgreSQL INSERT operations 36 times faster in Python
You probably already know that rule number one when performing inserts is to use bulk inserts,...
Vibe Coding a Kubernetes Media Server: What I Learned About AI-First Engineering
Zero Kubernetes experience. One week of vibe coding. What AI gets right — and where it needed a...
From Physics Events to Real-Time Analytics with Kafka Streams
A lightweight stream processing application that transforms raw motion and collision events from...
Self-Hosted VPN with Headscale: One Mesh Network for Your Entire Homelab
(Part 1/2)
We Built Google Maps for Kubernetes.
The first time you look at a map of Europe, you don't need a legend to know Italy is the boot-...
Kafka SASL Authentication: Usage & Best Practices
Under the Hood: Using OpenTelemetry to Monitor Your AI Coding Agent
As you incorporate coding agents into your workflow, understanding how they behave becomes...
AsciiDoc over Markdown
I taught myself HTML a long time ago, on a software called HotDog (Pro?). There wasn't such a...
Our Kubernetes Cluster Was Costing $14,850/Month. We Moved to Fly.io for $680.
A war story about infrastructure hubris, a CFO's question nobody could answer, and the two...
Is This a Tool, a Skill, or an Agent?
A map of the Generative AI stack, and how everything fits
Tailwind Creator Found Claude Code 50% Slower Than Not Using an LLM
Creator of Tailwind CSS, Adam Wathan, tried using AI to help design some components for the first...
VictoriaTraces: Tracing, Observability, and OpenTelemetry
OpenTelemetry and Observability in theory, deploying VictoriaTraces on Kubernetes, integration...
Claude Code: creating Kubernetes debugging AI Agent for VictoriaMetrics
Creating a Claude Code Marketplace and a Claude Code Plugin with a custom AI agent for Kubernetes...
One Pane of Glass: Building a Real-Time LLM & Hardware Telemetry Dashboard
Leveraging llama.cpp telemetry and Linux kernel metrics for seamless monitoring
A Mental Model for Claude Code: Skills, Subagents, and Plugins
I spent weeks confused by the feature ecosystem. Here is the mental model I wish I had from the...
Data Lakehouse: Infrastructure
fresha-data-engineering
· ~6 min read · September 19, 2025 (Updated: September 20, 2025) · Free: YesArchitecting a sophisticated Data Lakehouse platform on AWS, using EKS and cutting-edge...
Argo CD App-of-apps and Configuration as Data
App-of-Apps is how a lot of teams run many Argo CD applications from one place — but what it...
Transcribing any Youtube Video with Python: A Step-by-Step guide
Script that actually works
celld: Durable Objects, Unbundled
celld, a new open-source project from Deno, reimplements Cloudflare's Durable Objects model on...
Understanding IAM Policy Evaluation Logic and Permission Boundaries in AWS
Use IAM Policy Evaluation Logic and Permission Boundaries to secure and delegate AWS access with...
Open Data Lakehouse: A Practical Guide
The architecture, components, and operational reality of building a production open data...
Maintaining Apache Iceberg Tables: Compaction, Snapshots, Metadata and Orphan Files
The complete guide to Iceberg table maintenance — the four operations every table requires, why...
22 More Ways to Make Money with n8n (No Code, No Nonsense)
By very popular demand: after my first piece — "11 Ways to Make Money with n8n (Without...
Build a Local Kubernetes Platform with kubara, kind, and Argo CD
Create a local kind cluster, generate reviewable platform state with kubara, and let Argo CD...
AI coding agents write code fast. Why does review take so long?
How to prevent scope creep, unnecessary refactors, and oversized pull requests with a task brief...
Docker VPN & userspace Wireguard…
Adventures building a vpn server
OpenAI Codex CLI: From Broken Install to Multi-Agent Orchestration (Production Guide)
OpenAI Codex CLI Complete Guide from Installation to Multi-Agent Production Systems
Apache Iceberg Compaction Best Practices
A production guide to compaction strategies, parameter tuning, maintenance sequencing, and...
Validating, scoring, and gating Kubernetes configuration after every change
Validating triggers provide the kind of guardrails that AI agents need in order to verify their...
CloudnativePG: postgres database the modern way
For years, running a highly available (HA) PostgreSQL cluster was considered one of the...
Using Kubernetes ConfigMaps as a Real-Time State Store
What if your services could react to configuration changes the moment they happen — no message...
This is why you should not learn to use Docker
You're a developer and you think you should "Learn to use Docker" ? Today, I'll...
Yes you should understand backprop
When we offered CS231n (Deep Learning class) at Stanford, we intentionally designed the...
FrontOps. How structured logging saves you from console output chaos
One library can solve all your development problems and make it predictable
Observability Is Converging. Humans Aren't the Only Ones Querying It Anymore
Putting metrics, logs, and traces into one columnar store, querying them together, and holding up...
Kubernetes configuration transformation orchestrators
Transformation is a powerful technique used by config-as-data tools, such as kustomize, kpt, and...
GitHub Copilot Coding Agent: The Complete Architecture Behind Agentic DevOps at Enterprise Scale
How GitHub Is Replacing Solo Developers With Autonomous Agent Teams, and What That Means for Your...
AI Agents Don't Need Smarter Retrieval. They Need a Config Database
Today's AI agents are smart enough. They fail at Kubernetes chores anyway, because the answers...
What Is kubara? A GitOps-First Approach to Reusable Kubernetes Platforms
How kubara combines a declarative platform contract, a curated component catalog, and Argo CD to...
Running Production Minded Kubernetes on a Raspberry Pi
Most Kubernetes clusters are built in environments with excess capacity.
Agent Data Protocol (ADP): The Missing Standard for Training LLM Agents
Training large language model (LLM) agents to act intelligently in real-world environments has...