https://dhruvinity.com/blog Build logs and writing on full-stack engineering, AI/ML, and developer tooling. en Tue, 02 Jun 2026 15:42:08 GMT https://dhruvinity.com/blog/what-rag-actually-is https://dhruvinity.com/blog/what-rag-actually-is Fri, 22 May 2026 00:00:00 GMT Retrieval-augmented generation gets explained either as a vendor diagram or a wall of vector-math. Here it is as something a web developer already understands: a WHERE clause that runs before the model does. https://dhruvinity.com/blog/embeddings-without-the-linear-algebra-lecture https://dhruvinity.com/blog/embeddings-without-the-linear-algebra-lecture Fri, 22 May 2026 00:00:00 GMT Embeddings get taught with a matrix and a rotating scatter plot. You don't need either to use them. Here's the only mental model that matters — a map — plus the three catches the quickstarts leave out. https://dhruvinity.com/blog/rag-without-a-vector-database https://dhruvinity.com/blog/rag-without-a-vector-database Fri, 22 May 2026 00:00:00 GMT The default RAG recipe chunks your docs and embeds them into a vector store. grove doesn't. Here's the build log: why tree-of-contents retrieval, how the descent works, why rebuilds are free — and where it's honestly worse. https://dhruvinity.com/blog/image-converter-that-never-uploads https://dhruvinity.com/blog/image-converter-that-never-uploads Thu, 21 May 2026 00:00:00 GMT Browsers have shipped everything you need to convert and compress images locally for years. Here's how the Lab's converter works in three built-in APIs — and the two format gotchas that quietly bite. https://dhruvinity.com/blog/multi-route-prerendered-portfolio https://dhruvinity.com/blog/multi-route-prerendered-portfolio Thu, 21 May 2026 00:00:00 GMT Adding React Router and vite-react-ssg to a 3D-heavy portfolio: static HTML and per-route meta tags with no SSR server, and keeping the heavy WebGL bundle off the lightweight tool and blog pages. https://dhruvinity.com/blog/i-built-a-tool-that-slashes-the-cost-of-feeding-docs-to-ai https://dhruvinity.com/blog/i-built-a-tool-that-slashes-the-cost-of-feeding-docs-to-ai Fri, 01 May 2026 00:00:00 GMT Markdown files are the silent money pit of many LLM workflows. mdcompress strips the parts AI does not need, so your docs cost less to read. https://dhruvinity.com/blog/the-ai-isnt-the-same-person-twice https://dhruvinity.com/blog/the-ai-isnt-the-same-person-twice Thu, 23 Apr 2026 00:00:00 GMT You can ask an AI the exact same question on two different days and receive two meaningfully different answers. Here is why — and how to work with it. https://dhruvinity.com/blog/context-is-a-bucket-of-water https://dhruvinity.com/blog/context-is-a-bucket-of-water Tue, 21 Apr 2026 00:00:00 GMT “Context” gets thrown around dressed in engineer terminology — tokens, windows. A simpler mental model: it behaves like a bucket of water.