3 tutorials · 3 field notes
October 22, 2025/AI Era
In this tutorial, you will learn how to enable the pgvector extension to convert your Neon Postgres database into a vector database. This allows you to store and earch vector embeddings, which are necessary components when building Retrieval Augmented Generation (RAG) systems. The tutorial uses the Neon SQL editor for all the necessary steps.
September 2, 2025/AI Era
In this tutorial, you will learn how to update DiffusionBee on GitHub so you can use Flux Models locally on your Mac. Diffusion Bee is MacOS only and is the easiest way to run AI Models with Stable Diffusion run locally on your Mac. It is private, no internet required and is 100% free.
August 28, 2025/AI Era
In this tutorial, you will learn about RAG (Retrieval Augmented Generation) and how to build a RAG system from scratch that mines your AI Chat Conversations for ‘gold nuggets’ of information.
Definition
A knowledge graph stores information as things and the links between them, so an AI can follow those links to answer questions that need several facts joined together.
Definition
Chunking splits a long document into smaller pieces so an AI system can search and work with just the relevant part instead of the whole thing at once.
Definition
Re-ranking is a second, more careful pass that reorders an initial batch of search results so the best matches end up at the top.
