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# tutorial

Tutorial is a general purpose tag. We welcome all types of tutorial - code related or not! It's all about learning, and using tutorials to teach others!

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The Four Rate-Limiting Algorithms You Should Know (I Built a PHP Service That Runs All Five)

The Four Rate-Limiting Algorithms You Should Know (I Built a PHP Service That Runs All Five)

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10 min read
Understanding RAG by Building a ChatPDF App: Smarter Chunking & Context Optimization (Part 3)

Understanding RAG by Building a ChatPDF App: Smarter Chunking & Context Optimization (Part 3)

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4 min read
SEO Checklist for JavaScript Apps: Fix Your Rankings Before Your Next Deploy

SEO Checklist for JavaScript Apps: Fix Your Rankings Before Your Next Deploy

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5 min read
Building Production RAG Pipelines: 3 Lessons from My First Year

Building Production RAG Pipelines: 3 Lessons from My First Year

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3 min read
A Polite Port Scanner in 400 Lines of Tokio

A Polite Port Scanner in 400 Lines of Tokio

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9 min read
Counting TypeScript Escape Hatches — A Zero-Dependency CLI with a Baseline Gate

Counting TypeScript Escape Hatches — A Zero-Dependency CLI with a Baseline Gate

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9 min read
The similar crate is underrated: I wrote a colored diff CLI in a weekend

The similar crate is underrated: I wrote a colored diff CLI in a weekend

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8 min read
A Minimum-Viable RSS Aggregator in TypeScript with Hono

A Minimum-Viable RSS Aggregator in TypeScript with Hono

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12 min read
Build an Unusual Options Activity Scanner With Python and Free Data

Build an Unusual Options Activity Scanner With Python and Free Data

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5 min read
A Self-Hosted PHP Contact Form Backend Without CAPTCHA

A Self-Hosted PHP Contact Form Backend Without CAPTCHA

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7 min read
Cómo crear un agente de IA desde cero. Open source, local y gratis.

Cómo crear un agente de IA desde cero. Open source, local y gratis.

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14 min read
How to Write Workflow Skills: Patterns and Best Practices Distilled from 7 Top Projects

How to Write Workflow Skills: Patterns and Best Practices Distilled from 7 Top Projects

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6 min read
I Built jq for TOML Because My Shell Scripts Deserved Better

I Built jq for TOML Because My Shell Scripts Deserved Better

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9 min read
Como Preparar Suas APIs para Inteligência Artificial (IA)

Como Preparar Suas APIs para Inteligência Artificial (IA)

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6 min read
Building a URL Shortener in Rust with axum, SQLite, and 30 Lines of base62

Building a URL Shortener in Rust with axum, SQLite, and 30 Lines of base62

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9 min read
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