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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 to Build an AI Membership and Class Booking Agent for a Gym

How to Build an AI Membership and Class Booking Agent for a Gym

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7 min read
Lambda MicroVMs: run AI code safely in a sandbox

Lambda MicroVMs: run AI code safely in a sandbox

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19 min read
S3 presigned URL: secure file uploads with Lambda

S3 presigned URL: secure file uploads with Lambda

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18 min read
Like Figma, but for debugging: building a tracer two people can share

Like Figma, but for debugging: building a tracer two people can share

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4 min read
How to turn a PDF into a narrated whiteboard video for free (with Claude)

How to turn a PDF into a narrated whiteboard video for free (with Claude)

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4 min read
Catch a pandas join that silently multiplies attendance rows

Catch a pandas join that silently multiplies attendance rows

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3 min read
Get a free alert when a web page changes (price, stock, version), using GitHub Actions

Get a free alert when a web page changes (price, stock, version), using GitHub Actions

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2 min read
How I Built a Free Sui Gas Bill Checker for Pakistan (SNGPL & SSGC)

How I Built a Free Sui Gas Bill Checker for Pakistan (SNGPL & SSGC)

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3 min read
The one-line SQL query that broke code review

The one-line SQL query that broke code review

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3 min read
AI API Pricing Is Broken: Per-Token Billing Charges You for the Wrong Thing

AI API Pricing Is Broken: Per-Token Billing Charges You for the Wrong Thing

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7 min read
Fitting an animated emote under Discord's 256 KB: which lever actually saves bytes

Fitting an animated emote under Discord's 256 KB: which lever actually saves bytes

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3 min read
Why Removing Text From an Image Is Harder Than It Looks: A Developer's Guide to Inpainting

Why Removing Text From an Image Is Harder Than It Looks: A Developer's Guide to Inpainting

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7 min read
Python type hints for production: mypy, pyright and real-world patterns

Python type hints for production: mypy, pyright and real-world patterns

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4 min read
Use a Regex Tester Before Your Regex Breaks Production

Use a Regex Tester Before Your Regex Breaks Production

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5 min read
Headshot Background Replacement in Python: Measuring Edge Halos and Leftover Hair

Headshot Background Replacement in Python: Measuring Edge Halos and Leftover Hair

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7 min read
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