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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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How deep is the Hyperliquid order book? Measure it in Python

How deep is the Hyperliquid order book? Measure it in Python

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4 min read
SMS and WhatsApp sign-in codes for Supabase with MSG91

SMS and WhatsApp sign-in codes for Supabase with MSG91

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3 min read
Go JSON v2 Is Here: A Safe Migration Path for encoding/json

Go JSON v2 Is Here: A Safe Migration Path for encoding/json

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8 min read
Cloning Your Own Voice With ElevenLabs: Instant vs Professional, Recording Setup and Fixing a Bad Clone

Cloning Your Own Voice With ElevenLabs: Instant vs Professional, Recording Setup and Fixing a Bad Clone

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5 min read
Animated GIFs and markup-guided edits with the GPT Image 2.6 API — real timings and per-call cost

Animated GIFs and markup-guided edits with the GPT Image 2.6 API — real timings and per-call cost

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17 min read
Compare Google Trends keywords in bulk without pytrends

Compare Google Trends keywords in bulk without pytrends

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2 min read
How I Cut My LLM API Costs by 70% Without Touching My Code

How I Cut My LLM API Costs by 70% Without Touching My Code

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6 min read
Check a site migration's redirect map from a Google Sheet: 301s, chains and intended 410s

Check a site migration's redirect map from a Google Sheet: 301s, chains and intended 410s

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4 min read
Building a Fitness Test Calculator: Why Lookup Tables Beat Formulas

Building a Fitness Test Calculator: Why Lookup Tables Beat Formulas

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4 min read
Is this CVE actually being exploited? Check KEV, EPSS and CVSS in under a minute

Is this CVE actually being exploited? Check KEV, EPSS and CVSS in under a minute

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3 min read
A Project Skill Can Change APX Behavior With One Name

A Project Skill Can Change APX Behavior With One Name

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2 min read
DoorDash Has Seen Hundreds of AI-Agent Orders. Build a Checkout That Knows When to Stop

DoorDash Has Seen Hundreds of AI-Agent Orders. Build a Checkout That Knows When to Stop

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7 min read
GCC Lowers Your Switch Statement Three Different Ways: Bitsets, Jump Tables, and a Probability-Balanced Tree

GCC Lowers Your Switch Statement Three Different Ways: Bitsets, Jump Tables, and a Probability-Balanced Tree

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8 min read
Backup Verification in 2026: Exit Code 0 Is Not a Backup

Backup Verification in 2026: Exit Code 0 Is Not a Backup

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10 min read
ISBLANK is FALSE on a cell that looks empty (and IFBLANK doesn't exist) in Google Sheets

ISBLANK is FALSE on a cell that looks empty (and IFBLANK doesn't exist) in Google Sheets

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2 min read
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