The Main Thread
A weekly essay on the systems behind the systems. For engineers who want the slow, careful version - not the hot take
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No fluff, no AI summaries. Just one careful issue a week.
September 21, 2026
September 14, 2026
WHAT YOU Will GET
One careful essay a week. Three threads through them.
Three threads that run through every issue of The Main Thread.
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Systems
Circuit breakers, backpressure, failure modes: how production systems stay alive under pressure.
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Databases
B-trees, replication topologies, MVCC: how databases actually store and find things fast.
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AI Engineering
Structured outputs, reliable agents, RAG pipelines: building AI systems that hold up in production.
Anirudh Sharma
writer · engineer · still on call
I write the essay I wished existed when I was struggling with late night issues - the one that explains why the thing failed. One careful issue a week. No hot takes. No AI-paraphrased summaries.
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One slow, careful issue every week. Free,
forever. Read by 91 engineers and counting.
No fluff, no AI summaries. Just one careful issue a week.