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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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Warping an image across a deformable mesh in plain Canvas 2D (no WebGL)

Warping an image across a deformable mesh in plain Canvas 2D (no WebGL)

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7 min read
Controllers vs Minimal APIs: Stop Picking a Winner

Controllers vs Minimal APIs: Stop Picking a Winner

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3 min read
Enrich Elasticsearch Logs With GeoIP at Ingest

Enrich Elasticsearch Logs With GeoIP at Ingest

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11 min read
Backing up a homelab with restic

Backing up a homelab with restic

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15 min read
INDEX MATCH vs VLOOKUP: The Lookup That Survives a New Column

INDEX MATCH vs VLOOKUP: The Lookup That Survives a New Column

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17 min read
Checking Xero supplier statements with n8n and deterministic TypeScript

Checking Xero supplier statements with n8n and deterministic TypeScript

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4 min read
A Reasoning Ledger for a Free-Tier Coding Agent

A Reasoning Ledger for a Free-Tier Coding Agent

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4 min read
Nim Concurrency Explained: Async/Await, Threads, Channels, and Parallel Work

Nim Concurrency Explained: Async/Await, Threads, Channels, and Parallel Work

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8 min read
Don't just return results — show users WHY they matched (highlighting in pure Python)

Don't just return results — show users WHY they matched (highlighting in pure Python)

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4 min read
The Shopify zero-price bug that breaks Merchant Center feeds

The Shopify zero-price bug that breaks Merchant Center feeds

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5 min read
What Does an Agent Harness Actually Do? Building a Minimal One in Python

What Does an Agent Harness Actually Do? Building a Minimal One in Python

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9 min read
I Watched My AI Agent Loop for 40 Minutes. Here's the Guardrail I Added.

I Watched My AI Agent Loop for 40 Minutes. Here's the Guardrail I Added.

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4 min read
Build a phishing link checker in Node.js with three API calls

Build a phishing link checker in Node.js with three API calls

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Picked as gem Comments 3
8 min read
On-Device OCR in SwiftUI: A Practical Guide to the Vision Framework

On-Device OCR in SwiftUI: A Practical Guide to the Vision Framework

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3 min read
Your scraper's defaultCountry setting invents phone numbers

Your scraper's defaultCountry setting invents phone numbers

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4 min read
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