Ler Tech Notes
LerLer ChanInstructor of AI Agent classes | Programmer since 2010 | Blogging since 2007 | Helping working adults and students build practical AI tools | Exploring ethical AI writing, automation, and education.
| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 74 | Founded | a year ago | Last Issue | 9 days ago |
| Active | |||||
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lertechnotes.substack.comLatest Issues
Can Singaporeans Be the Real Market for AI Classes in Johor Bahru?
Recently I started asking a different question.
Instead of:
“Why is it so hard to fill physical AI classes in Johor Bahru?”
Maybe the better question is:
“Can JB serve Singapore learners instead?”
There are some interesting data points...
Stop Comparing Claude, Codex, and Gemini. Build a Better Harness Instead.
1. Treat AI models as replaceable commodities
Most organizations spend too much time comparing:
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Claude vs Codex
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GPT vs Gemini
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OpenAI vs Anthropic
The author’s argument:
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Model advantages are temporary.
-
Today’...
How I Create a 10-Second CTA Video with Claude Code and Codex
1. Start With the Marketing Problem, Not the AI Tool
I was preparing to conduct an AI for Dhamma Outreach workshop at d’CRADLE on 3 October 2026.
The initial response was slower than expected.
One of the organisers gave me useful fee...
The Real AI Race Is No Longer About Models. It's About Services.
For the past few years, most AI discussions focused on models.
Who has the smartest model? Who has the most parameters? Who scored higher on the latest benchmark?
That conversation is becoming less useful.
After watching a recent discuss...
Why Is Colibri's DeepSeek V4 Flash So Slow on Consumer Hardware? A Real Benchmark From Production
Most discussions about large MoE (Mixture-of-Experts) models focus on GPUs. This one does not.
I tested DeepSeek V4 Flash running under Colibri on a consumer server with a single NVMe SSD and no GPU acceleration. The result was surprisingl...
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Instructor of AI Agent classes | Programmer since 2010 | Blogging since 2007 | Helping working adults and students build practical AI tools | Exploring ethical AI writing, automation, and education.
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