The First Derivative by Kashyab
Kashyab| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 29 | Founded | 4 years ago | Last Issue | 2 months ago |
| Active | |||||
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thefirstderivative.substack.comLatest Issues
The Art of Steering
I finally caved in and gave Codex a try a couple of months ago. Since then, OpenAI has shipped several promising updates that have made agentic coding much more enjoyable. My favorite is the pet—it brings back a sense of nostalgia. I also u...
The Machine Inside The Machine
100 GB out of 256. That’s how much of my disk Docker images were quietly eating.
So I did the responsible thing and started purging. While I was at it, I ran a deeper disk analysis to see what else was hiding. That’s when I found it: a 10...
The Abstraction Tax
There is a distinct feeling of power when a programmer types “import math”. It feels like commanding the machine directly. (I felt this too)
This is an illusion. You are not speaking to the hardware; you are simply pulling a lever that run...
Node.js and a Single Thread
Happy 2026! First post of the year :)
Is Node.js single threaded? I answer with a lot of confidence that it is single-threaded. Then a follow-up question, “How do we handle concurrency in Node.js if its just single threaded? (assume your...
Rewind 2025: The Grain by Kashyab
Writing looks like a way to send information, but it’s actually a way to generate it. Although, I have had a Substack account since 2022, I only started taking it seriously in mid-2025. The catalyst was system design because I was doing thi...
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The writers behind this newsletter.
Curiosity, rigorously pursued through the systems shaping technology.
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