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Kang Jeongsik

Solo founder, B2B SaaS, building AI Agent Control Framework

Joined Joined on  github website
A browser stopwatch that stays right when the tab sleeps

A browser stopwatch that stays right when the tab sleeps

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3 min read
What I learned building an alarm clock that lives in a browser tab

What I learned building an alarm clock that lives in a browser tab

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3 min read
My calculators gave correct answers to the wrong questions, so I started asking back

My calculators gave correct answers to the wrong questions, so I started asking back

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4 min read
How I count business days with public holidays in JavaScript (rules, an API, and the corrections it needed)

How I count business days with public holidays in JavaScript (rules, an API, and the corrections it needed)

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5 min read
How to respect robots.txt and Crawl-delay in Python

How to respect robots.txt and Crawl-delay in Python

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2 min read
How I Survived 7 Rebuilds of the Same SaaS by Building a Control Layer Around Claude Code

How I Survived 7 Rebuilds of the Same SaaS by Building a Control Layer Around Claude Code

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3 min read
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