1️⃣ Introduction

In the era of AI-powered search, retrieval-augmented generation (RAG), and recommendation systems, efficient vector search is a necessity. While many vector databases exist, most require heavy infrastructure.

Enter ChromaDB: a lightweight, open-source vector database optimized for rapid prototyping and local AI applications.

2️⃣ What is ChromaDB?

Definition:

ChromaDB is a vector database for storing and querying embeddings. It provides an easy-to-use interface for AI developers to integrate similarity search into their applications.

An android implementation of [CDB] (https://cr.yp.to/cdb.html) database. With some simple testing I am seeing a five to ten times increase in speed over Sqlite

A derivatives trading system. This is my attempt at building a derivatives trading system. In this first post I am going to outline the goals of the project and some of the early design decisions.

A validation tool for excel files. Sometimes you need to export data from one system for loading into another. For instance you may export a report from a derivatives trading system for information for a collateral management system.

This Excel macro file validates input files to make sure that they are in a specific format. The input file can be in any format that excel can load. The workbook will load the file and check for errors in place.

Google have just released their speech API. One really cool feature is the ability to transcribe voice in real time. Two years ago I built an app with this idea in mind. At that at the time I could no make it work. Now it is time to resurrect that app. This post will cover the recording section of that application.

This is another simple android application. It does one thing It keeps your phone awake.

This is a really simple android application. It does one thing It takes a photo of a web site and allows you to share the photo.

This is a script I use in my android projects to generate different sized images.

You can find the script here process.vbs

So I build all my images in inkscape.

This is brilliant application.

You can find some brilliant tutorials here heathenx

The script uses inkscape to convert the svg files to png images of different sizes.

The script also use imagemajic to format the pngs nicely.

Finally it compresses the result using two png crushing programs

This is a very simple log class I reuse in my projects

It is a hybrid of Timber by Jake Wharton and the Log in Android Universal Image Loader by Sergey Tarasevich

I think that this tool is the best search tool for windows.

Everything