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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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Jun 23, 2019

5 minutes to Install Imagemagick with HEIC support on Ubuntu 20.04 (and 18.04) DigitalOcean

5 mins guide. How to setup Imagemagick with HEIC/HEIF support on Ubuntu 20.04. I am writing this because the default…

5 minutes to Install Imagemagick with HEIC support on Ubuntu 20.04 (and 18.04) DigitalOcean

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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

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Jun 12

I ported a research KV-cache quantizer KVarN to Apple Silicon from my iPhone in Japan, using a $30…

I just shipped mlx-kvarn: the first MLX-native implementation of KVarN, a KV-cache quantization method from a 2026 Huawei paper. It gives…

I ported a research KV-cache quantizer KVarN to Apple Silicon from my iPhone in Japan, using a $30…

Edward Tsang

·

May 11

Why Coding Is the Perfect Job for AI Agents (And Why That’s Good News for Most Developers)

A two-part essay on the deep reasons coding is uniquely suited to AI agents, and why developers shouldn’t expect their compensation to…

Why Coding Is the Perfect Job for AI Agents (And Why That’s Good News for Most Developers)

Edward Tsang

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May 6

Coding from Anywhere with Claude Code and Qwen Code: My macOS Tahoe Setup with mosh, tmux, and…

If you live in Claude Code or Qwen Code and want to keep coding from your iPhone or iPad without sessions dying every time the train goes…

Coding from Anywhere with Claude Code and Qwen Code: My macOS Tahoe Setup with mosh, tmux, and…

Edward Tsang

·

Apr 21

TurboQuant Doesn’t Work on Qwen 3.5 — So I Made It Work

A month ago, Google published a blog post about a paper called TurboQuant. Memory chip stocks lost billions in market cap within hours. The…

TurboQuant Doesn’t Work on Qwen 3.5 — So I Made It Work

Edward Tsang

·

Apr 18

Why Pay Full Price? 10 Chinese Coding Agents Offering Pennies-Per-Token AI

While the Western AI coding market gets all the attention, China has quietly built a parallel ecosystem of coding agents that rival — and…

Why Pay Full Price? 10 Chinese Coding Agents Offering Pennies-Per-Token AI

Edward Tsang

·

Feb 5

How to Securely Access Ollama and Swama Remotely on macOS with Caddy

Access your local AI servers from anywhere with separate authentication for each backend

How to Securely Access Ollama and Swama Remotely on macOS with Caddy

Edward Tsang

Edward Tsang

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

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