Hyperscalers Are Building the Digital World Like It’s 2015 — And It Shows
I didn’t set out to diagnose hyperscalers. I wasn’t doing a grand industry analysis. I wasn’t mapping global architecture. I wasn’t trying to understa…
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The Evaluation Debt You Don't Know You Have: Why Agent Evals Fail in Production
The Evaluation Debt You Don't Know You Have: Why Agent Evals Fail in Production By Paul Twist, Berlin | July 13, 2026 The Problem Nobody Talks About Y…
DNS Propagation Time: How Long Until Your DNS Change Goes Live?
You change the A record for api.example.com from 203.0.113.10 to 203.0.113.20`. Your browser shows the new IP. The deployment dashboard says green. Th…
My Self-Hosted AI Assistant Kept Overwriting Its Own API Keys: A Zero-Trust Postmortem
🦞 Code for this post: sanitized watchdog + config-repair scripts at github.com/backitupboys/ai-agent-zero-trust Part 1 of a series on running AI agent…
Moving 20,000+ customers to a new Stripe account without anyone noticing
None of our 20,000+ US customers know this happened: last month, we moved them, their payment methods, subscriptions, credits, coupons, and promotion …
The "Ghost Client" Problem: How to Manage Orphaned Domains and Abandoned Hosting
Article image The "Ghost Client" Problem: How to Manage Orphaned Domains and Abandoned Hosting Every web design agency, freelancer, and managed servic…
Applying SAST to Infrastructure as Code (Without TFSec)
Static analysis isn't just for application source code. Terraform, Pulumi, OpenTofu, and CloudFormation files are code too — and they get misconfigure…
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Title vLLM PagedAttention KV Cache Corruption: Woke Up to This Nightmare Image generated via Midjourney by author But tbh I dont even know where to st…
Title
Title vLLM PagedAttention KV Cache Corruption: Woke Up to This Nightmare Image generated via Midjourney by author But tbh I dont even know where to st…
The Hidden Technical Problems That Break DAOs in Production
Decentralized Autonomous Organizations are often presented as simple governance systems: token holders create proposals, vote, and execute decisions o…
AI Governance Without Compute: Why Policy Fails When Infrastructure Isn’t Part of the Conversation
Introduction AI governance is often framed around risk, ethics, safety, and international cooperation. These are essential, but they are not sufficien…
Demystifying SSH Key Pairs: The Silent Guardians of Modern Infrastructure
Every DevOps engineer has typed this command countless times: ssh ubuntu@my-server A few seconds later, you're inside a Linux machine located hundreds…
Я делал «nginx для телеграм‑ботов», а получился конструктор шлюзов на Rust
Это история о том, как я писал балансировщик нагрузки для телеграм-ботов, на полпути понял, что телеграм тут вообще ни при чём, выкинул половину проек…
I Built My First AWS Network with Terraform. Here's Everything That Went Wrong.
Week 1 of a five-week Infrastructure-as-Code journey, told honestly: the 403s, the 400s, the missing resource, and the security group I got wrong twic…
Terraform at Scale: Lessons from Managing 500+ Resources
When Terraform Gets Slow Our Terraform state file grew to 500+ resources. Plans took 8 minutes. Applies timed out. State locking conflicts were daily.…
When TLS 1.3-only broke everything behind Akamai
The alert wasn't subtle. Requests just stopped hitting our backend nginx box. Internal traffic from our own domains kept flowing, but anything coming …
Network service based on ZeroTier
I am developing a service to use on my computer, that allow the user to create a network on their system to connect to it from other part of the world…
Fixing the 550 SPF Check Failed Error: A Technical Step-by-Step Troubleshooting Guide
Understanding the 550 SPF Check Failed Error The "550 SPF Check Failed" error indicates that a receiving mail server rejected an incoming email. This …
Configuring DMARC p=quarantine: A Technical Step-by-Step Guide to Secure Your Domain and Improve Deliverability
Introduction to DMARC and the p=quarantine Policy DMARC (Domain-based Message Authentication, Reporting, and Conformance), defined in RFC 7489 , is an…
Solving the GPU Pinning Saga and Gemma's Meta-Commentary
What we shipped on 2026-07-03 We spent today fighting a ghost in our GPU orchestration, starting with fix(llm): stop setting litellm.api_base global (…
The Real Cost to an Agency When a Client's Domain Silently Expires
Article image The Real Cost to an Agency When a Client's Domain Silently Expires Every digital agency owner has a nightmare scenario. It's usually not…
NVIDIA's warm-water fix for AI's thirsty data centers
NVIDIA has proposed a liquid-cooling design for AI data centers that it says can eliminate virtually all on-site water consumption for chip cooling, r…
How to Actually Cap AI Spend for Your Users: 3 Edge Cases Everyone Misses
The spend cap for my first AI project was just a limit on an Anthropic API key. Crossing your fingers that users don't find your limit, and that it's …
Building an OpenShift 4.18 Cluster from Scratch: Part 1 – The Network Foundation & Utilities Server
Note: This is Part 1 of a multi-part series. [Part 2: Generating Ignition Configs & VM Prep] (Coming Soon) [Part 3: The Deployment Lifecycle &…
My "serverless" database was billing me like it never slept.
My "serverless" database was billing me like it never slept. Neon has this great feature called scale-to-zero. Your Postgres compute suspends when it'…
LLM Integration in CI/CD: Real Use Cases Beyond Code Completion
A GitLab API token appeared in a README.md file. It was committed, pushed, and reviewed by two engineers before merging. Nobody caught it. This was no…
Route Phone Calls to an AI Agent With the Telnyx Voice API
Voice AI agents are transforming customer service, sales, and support. But before an AI can talk to a caller, you need the voice infrastructure layer …
Auto-Discovering Infrastructure Dependencies Across 10 Ecosystems
It sounds simple: clone every repo, parse the files, build a graph. Here's why each ecosystem fights back, and what it actually takes to map cross-rep…
Serving cheap when two models agree: a measured cost lever
The problem A cost efficient AI system sends easy work to a cheap model and only escalates hard work to an expensive frontier model. The trouble is kn…
Why am I building a DevOps Infrastructure Lab?
I am committed to understand how systems actually work. I'm working on a multi-node lab to follow the complete path of a request from Python APIs to L…