react
9 min read • Aug 21, 2026
What an idempotency key actually does
What a retried request does to a money transfer, and the one column that makes retrying safe.
ReactRead article
Blog
Notes on retrieval, embeddings, and the backend work behind them.
- embeddings
6 min read • Aug 20, 2026
Embeddings are just arrays. Retrieval is the work.
A working model of vectors before the library magic, written while wiring the first retrieval path.
EmbeddingsRead article - embeddings
14 min read • Aug 20, 2026
How to Build an AI Email Auto-Reply System with RAG and PostgreSQL
Learn how to build an AI email auto-reply system using RAG, PostgreSQL, and pgvector, from embeddings to retrieval to LLM generated replies.
EmbeddingsRead article - react
14 min read • May 30, 2024
Live Coding React Interview Questions
React live coding interview questions
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