The AI Builder’s Notebook - Systems & Intelligence
Anuja GaunekarDaily insights on AI engineering, architecture, and system design.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 9 | Founded | 8 months ago | Last Issue | 2 months ago |
| Active | |||||
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anujagaunekar.substack.comLatest Issues
The Tiny Database Migration That Took Down Production
Sometimes production does not fail because of a huge architectural mistake.
Sometimes it fails because one innocent-looking database migration walks in wearing a nice shirt and says, “I am just changing a column type.”
Thanks for reading...
Designing a Timestamp-Based Polling API
Every backend is now using REST APIs.
And honestly, everything feels fine when you are handling those APIs internally. Your frontend calls your backend. Your team knows the rules. Your system behaves. Everyone is happy.
But the moment you...
Why Nobody Talks About This Uncomfortable Truth About AI and Jobs
Everywhere you look. LinkedIn. Medium. Twitter.
AI is being marketed as the ultimate job disruptor.
Scroll for five minutes and you will see dramatic posts predicting the end of developers, the extinction of roles, and a future where robo...
Designing APIs for AI
We used to design APIs for deterministic clients.
Now our fastest growing client might be an LLM that forgets context, retries aggressively, reasons in loops, and pays per token.
The API did not get slower. The caller did.
The API did...
Scaling to 1 Million Users Without Losing Your Mind
If you have ever shipped an app that suddenly starts getting real traffic, you know this feeling.
Everything works. Until it doesn’t.
One day your metrics look “normal.” Next day, you are staring at timeouts, database CPU spikes, and a su...
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Authors
The writers behind this newsletter.
Engineer. AI builder. Mum. Bike lover. I write simple, practical insights on AI, system design, and building real products without the complexity drama.
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