PRABHAT KASHYAP’S ENGINEERING NOTES
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A practical introduction to functional programming and Cats in Scala: pure functions, type classes, and validation with Either and ValidatedNel.
Understand context-window limits, token budgets, prompt placement, and lost-in-the-middle. Learn how to select evidence and build reliable conversational state.
Choose Kafka or RabbitMQ by retention, replay, routing, ordering, retries, and delivery semantics. Includes Share Groups, Streams, and failure diagrams.
A beginner-friendly guide to next-token generation, with worked probability examples, clear diagrams, and deeper lessons on sampling, correctness, and reproducibility.
A plain-English guide to how text becomes numbers, why similar vectors help search, and where matches can go wrong, with...
SQL/PGQ was withdrawn from PostgreSQL 19 during beta. This historical walkthrough explains the preview design and its limits without presenting...
Open source
Tools I build.
Code you can use.
Practical tools and libraries, with the source open to explore.
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Mockery
A mock REST server with YAML configuration, request matching, and a built-in browser editor. Run it from a single downloaded binary.
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Prabhat Kashyap
Senior Technical ArchitectI build and explain backend systems, from Scala and JVM internals to distributed systems and practical AI engineering.
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