Archive

SL#105 - AWS Services (3/120) - Amazon ECS: Cluster, Task, Service, and the Rolling Deploy Underneath

Three nouns everyone confuses, one deploy model that quietly changed in 2025, and a containerized API you ship to ECS on Fargate in an afternoon. Plan for 45 minutes and about ten cents of spend.

Houssem BEN SLAMA

Tutorial

Jul 22, 2026

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10 min read

SL#104 - AWS Services (2/120) - AWS Lambda: The Cold Start Is the Model, Not the Bug

What Lambda actually is, how the execution and concurrency model works, what it costs, the limits that bite at scale, and a hands-on build that provisions concurrency and measures the cold-start latency it removes. Plan for 60-90 minutes.

Houssem BEN SLAMA

design_patterns

Jul 21, 2026

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7 min read

SL#103 - Event Sourcing: Your Data as a Log

Storing the change instead of the result is the easy part. The bill comes due when you realize every event you have ever written is a public contract you can never take back.

Houssem BEN SLAMA

Software Engineering

Jul 21, 2026

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7 min read

SL#102 - Refactoring Was the Receipt for Reading the Code. It's Down 70%.

GitClear's 2026 data shows refactoring collapsing and duplication climbing across 623 million changes. Read as a code-quality story, it misses the point. Refactoring is what a human does after reading the code around them, and that reading is what left.

Houssem BEN SLAMA

EC2

Jul 21, 2026

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10 min read

SL#101 - AWS Services (1/120) - Amazon EC2: The Primitive Every Other AWS Service Is Built On

The definition-first reference for EC2: the instance model, the six ways to pay for it, the quotas that bite, and a hands-on build of a right-sized instance behind an Auto Scaling group with a warm pool. Plan for about 45 minutes and under a dollar.

Houssem BEN SLAMA

Jul 15, 2026

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8 min read

SL#100 - Your Agent's Safety Classifier Never Sees the File That Hijacked It

AI Now's Friendly Fire exploit turns Claude Code and Codex into the delivery vehicle for the malware they were asked to find. The reason it works is written plainly in Anthropic's own design doc.

Houssem BEN SLAMA

design_patterns

Jul 12, 2026

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7 min read

SL#99 - CQRS: When Reads and Writes Diverge

CQRS is not two databases. It is one idea about splitting the model, and most teams end up paying for the expensive version when they only needed the cheap one.

Houssem BEN SLAMA

Tutorial

Jul 12, 2026

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9 min read

SL#99 - Build a Claude Code Guardrail Hook That Blocks Secret Leaks and Destructive Commands

A 120-line Python hook that stops Claude Code from running rm -rf, force-pushing, or writing an API key into your source. Plan for 45 to 60 minutes if you have run Claude Code before.

Houssem BEN SLAMA

AWS

Jul 11, 2026

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7 min read

SL#98 - AWS AI Series (30/30) - The Capstone: The Full Architecture, the Real Bill, and What to Keep

Thirty tutorials, one running stack. This is the reference architecture we built, the monthly bill it produces at real traffic, and the honest decision guide for what to keep and what to delete.

Houssem BEN SLAMA

AWS

Jul 10, 2026

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10 min read

SL#97 - AWS AI Series (29/30) - Lock Down Your Agent Stack: A Security Audit With the Agentic AI Lens, IAM Boundaries, and Per-Step Guardrails

We ran an agent stack for 28 episodes. Now we audit it: import the Well-Architected Agentic AI Lens, write a Python auditor for IAM boundaries and wildcard policies, and add a per-step guardrail with the new InvokeGuardrailChecks API.

Houssem BEN SLAMA

design_patterns

Jul 9, 2026

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6 min read

SL#96 - Event-Driven Architecture Is Four Patterns Wearing One Name

Everyone means something different by "event-driven," and most production pain comes from two teams picking different meanings without noticing.

Houssem BEN SLAMA

Web Development

Jul 9, 2026

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6 min read

SL#95 - Next.js Bet Your App Was Mostly Static. TanStack Start Bets It Isn't.

Both frameworks server-render. The real fight is over what should be the default, and Next.js 16 quietly reversing its own caching default is a hint the original bet was too aggressive for the apps most of us actually build.

Houssem BEN SLAMA

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SL#105 - AWS Services (3/120) - Amazon ECS: Cluster, Task, Service, and the Rolling Deploy Underneath

SL#104 - AWS Services (2/120) - AWS Lambda: The Cold Start Is the Model, Not the Bug

SL#103 - Event Sourcing: Your Data as a Log

SL#102 - Refactoring Was the Receipt for Reading the Code. It's Down 70%.

SL#101 - AWS Services (1/120) - Amazon EC2: The Primitive Every Other AWS Service Is Built On

SL#100 - Your Agent's Safety Classifier Never Sees the File That Hijacked It

SL#99 - CQRS: When Reads and Writes Diverge

SL#99 - Build a Claude Code Guardrail Hook That Blocks Secret Leaks and Destructive Commands

SL#98 - AWS AI Series (30/30) - The Capstone: The Full Architecture, the Real Bill, and What to Keep

SL#97 - AWS AI Series (29/30) - Lock Down Your Agent Stack: A Security Audit With the Agentic AI Lens, IAM Boundaries, and Per-Step Guardrails

SL#96 - Event-Driven Architecture Is Four Patterns Wearing One Name

SL#95 - Next.js Bet Your App Was Mostly Static. TanStack Start Bets It Isn't.

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