Vol. XXV · No. 04 A personal publication · Est. 2004
By Rangaprabhu Parthasarathy
A journal of product, AI, and the craft of building things people love.
· Bay Area, California · Advising open
AI · Essay — April 13, 2026

Building my Personal
LLM Wiki (Part II)

The technical implementation — chunking, retrieval, routing, and the stubborn problem of keeping notes that are worth keeping.

Continue reading —
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Building my Personal LLM Wiki (Part 2): The Technical Implementation
Building my Personal LLM Wiki (Part 2): The Technical Implementation

Following up on my previous post on what prompted me to build my personal LLM Wiki, here is the promised technical flow (per Claude Code).

Building my Personal LLM Wiki (Part 1): The Motivation
Building my Personal LLM Wiki (Part 1): The Motivation

Inspired by Karpathy’s post, my ongoing journey in building my own llm wiki.

Workplace AI adoption right now isn't just a tooling challenge. It's a human one.
Workplace AI adoption right now isn't just a tooling challenge. It's a human one.

Building the conditions and making the space to learn and experiment is going to be critical to drive AI adoption in the workplace.

Leveraging my Second Brain to Build a Chief of Staff (and Secretary)
Leveraging my Second Brain to Build a Chief of Staff (and Secretary)

My experience building my second brain at work and leveraging it to build a Chief of Staff and Secretary that help me be more productive and efficient with my time.

The Age of Product Builders
The Age of Product Builders

The era of product builders is here. You have by now heard of the industry shift to full-stack product builders. Why does this matter and how can you retool for this era?

Two Lives · A parallel practice
I. The Product Life

Building things people love.

Twenty‑five years of consumer products at Amazon and Meta. Currently Director of Product, AI Wearables. Writing essays here on what I've learned about craft, teams, and the future of interfaces.

  • Now Director of Product, Meta · AI Wearables
  • Recent Llama 3.2 & Llama 4 at GenAI / MSL
  • Shipped Echo Dot, Echo, Kindle, Oculus Quest 1 & 2
Learn more —
II. The Craft Life

Carnatic music, my lifeline.

A lifelong student and avid listener of Carnatic vocal music. The 72 Melakarta — parent ragas of the Carnatic system — is the scaffold I return to when I'm lost. I built a small app using different AI models to explore them.

I II III IV V VI VII VIII IX X XI XII chakra 72 MELAKARTA
Currently studying
Raga Todi — No. 8, Chakra II
Open the Melakarta app —