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Amitav Roy

I help engineering teams design systems that scale.

17 years building production systems across fintech, e-commerce, and SaaS. I write about system design, architecture decisions, and the patterns that keep software running at scale for engineering leaders and developers.

Consultant · Architect · Speaker

Amitav Roy - Software Consultant
20K+ subscribers YouTube channel
Conference speaker Laravel community
17+ years Production systems
Technical blog System design & architecture

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LangGraph Subgraphs: What "Shared Channel Names" Actually Means

How to · June 2026 · 2 min read

LangGraph Subgraphs: What "Shared Channel Names" Actually Means

I was wiring up a LangGraph parent-subgraph today and couldn't figure out how data flows. Turns out it's simpler than the docs make it sound — matching key names is all it takes.

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