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"A journey of a thousand miles begins with a single step." -Chinese Proverb

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I Built a Toast Notification System in ~40 Lines (Stack, Auto-Dismiss, Variants)

I Built a Toast Notification System in ~40 Lines (Stack, Auto-Dismiss, Variants)

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1 min read
Why Accuracy Lies: Precision, Recall and F1 From Scratch

Why Accuracy Lies: Precision, Recall and F1 From Scratch

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1 min read
If your vector DB needs to see your data to search it, you’re not building private AI you’re renting confidence.

If your vector DB needs to see your data to search it, you’re not building private AI you’re renting confidence.

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3 min read
IAM Essentials, Identity & Access Management: Roles, Policies, Groups, EC2 & Service Principals

IAM Essentials, Identity & Access Management: Roles, Policies, Groups, EC2 & Service Principals

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10 min read
Mastering Python Context Managers: From Basics to Advanced

Mastering Python Context Managers: From Basics to Advanced

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6 min read
Code Challenge of the Day: Leap year (easy)

Code Challenge of the Day: Leap year (easy)

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1 min read
JavaScript Arrays

JavaScript Arrays

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2 min read
Introduction to TypeScript. Interfaces

Introduction to TypeScript. Interfaces

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2 min read
Introduction to TypeScript. Function Types

Introduction to TypeScript. Function Types

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2 min read
Stop Trusting User Input: How to Build a Python 'Validation Gate'

Stop Trusting User Input: How to Build a Python 'Validation Gate'

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4 min read
Measuring Japanese Read-Aloud Speed with AmiVoice Timestamps — A Coaching App That Doesn't Stop at STT-to-Claude

Measuring Japanese Read-Aloud Speed with AmiVoice Timestamps — A Coaching App That Doesn't Stop at STT-to-Claude

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11 min read
Not 'Did You Use AI' but 'Are You the One Driving' — Reflections on Building a Real Product Through AI Collaboration

Not 'Did You Use AI' but 'Are You the One Driving' — Reflections on Building a Real Product Through AI Collaboration

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7 min read
The lens behind every block

The lens behind every block

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4 min read
The OSI Model: Demystified, Not Memorised

The OSI Model: Demystified, Not Memorised

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2 min read
Why Knowing SQL Isn't Enough to Understand Databases

Why Knowing SQL Isn't Enough to Understand Databases

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3 min read
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