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3B Infrastructure

Hand-drawn notes on system design, with demos you can run

Launch date · UTC
2026-11-04
Domain
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Domain ending
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Category
Education

About this product

3B Infrastructure is a notebook of plain-English explanations and hand-drawn diagrams on how software is built. Sections cover system architecture (26 topics), database concepts (9), AWS scaling (13), DevOps (19) and a 15-step VPS deploy guide, plus engineering subjects and a hand-picked course path. The maker says topics come with demos you can play and step through. The site says it is free to read with nothing to sign up for.

Keywords

study noteSystem Designtechnical tutorial