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Resources
Two separate libraries: system design markdown (with Mermaid diagrams) and DSA JavaScript solutions split into problem, solution, and tests.
Track 1
System design
51 deep-dive documents—requirements, components, flows, and Mermaid diagrams. Meant to be read in order or jumped by topic from the sidebar.
Open system design →Track 2
DSA topics
8 categories, 160 problems. Each page uses tabs so you can read the statement, study the solution, and review tests independently.
Open DSA →