Medium

Edward Tsang

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Edward Tsang

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Jul 18, 2025

Local RAG Chatbot with Ollama on Mac

Lightweight, private, and customizable retrieval-augmented chatbot running entirely on your Mac.

Local RAG Chatbot with Ollama on Mac

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Edward Tsang

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Nov 23, 2025

How and why to run Ollama on your own Mac?

The reason is simple: because you can. M1 or later Macs with 16GB of RAM or more are powerful enough to run useful models on device without…

How and why to run Ollama on your own Mac?

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Edward Tsang

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Dec 11, 2018

5 minutes to Install Hyperledger Fabric v2.x (and 1.x LTS) on Ubuntu 20.04 DigitalOcean

Yes, It can be done, in 5 mins or so. So I won’t waste too much time to explain these to you. Just get a basic Ubuntu 20.04 Droplet from…

5 minutes to Install Hyperledger Fabric v2.x (and 1.x LTS) on Ubuntu 20.04 DigitalOcean

Edward Tsang

·

7h ago

Why Ordinary Work Is Still a Challenge for AI

This article began while I was thinking through AI-agent workflows for two rather different business scenarios.

Why Ordinary Work Is Still a Challenge for AI

Edward Tsang

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2d ago

Nvidia’s Scandal Is Not an AI Story

A tech writer’s view from China on the biggest business scandal of the year, and why most coverage is reading it wrong

Nvidia’s Scandal Is Not an AI Story

Edward Tsang

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Nov 6

Why I’m Talking Less Since I Started Coding With AI

Last week, I had Korean food in Hong Kong with a Korean friend who had booked the restaurant.

Why I’m Talking Less Since I Started Coding With AI

Edward Tsang

·

Nov 1

The Smartest Guy in the Room Rarely Runs It

The week the bill arrived

The Smartest Guy in the Room Rarely Runs It

Edward Tsang

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Oct 30

The Binance Hack Feels Different. The Next Step Is Better Design.

A roughly $6.3 billion theft-the largest reported crypto hack-is serious by any measure. Yet watching the response to the Binance breach…

Edward Tsang

·

Oct 20

Eight Years Later, My HomePod Can Finally Be My Mac Speaker

I’ve owned HomePods since the original big one, then gradually filled the house with HomePod minis. And all this time, I’ve wanted one very…

Edward Tsang

·

Oct 20

AI Is Hacking Humans. We’re Debating Its IQ.

Much of the AI debate seems caught between two questions: are we approaching superintelligence, or are we heading towards an expensive…

AI Is Hacking Humans. We’re Debating Its IQ.

Edward Tsang

Edward Tsang

CTO turned agentic coder. Blockchain, fintech, trading infra. 17+ years shipping products. Writing & open source → evolvingviews.com & odw.ai

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