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 | Twice weekly |
|---|---|---|---|---|---|
| Issues | 45 | Founded | 9 months ago | Last Issue | 10 days ago |
| Active | |||||
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lertechnotes.substack.comLatest Issues
Build Your Own AI Workflow: What I Learned from 2 Days with n8n
Over the past two days (16-17 May 2026), I attended an n8n automation workshop.
Not just another “AI tools demo” —
but a hands-on deep dive into how to actually automate real work.
This is my distilled learning note —
especially for t...
Run Your Own AI Teaching Assistant (Without Paying for Tokens)
🧠 The Real Problem (That Most Teachers Won’t Say Out Loud)
Let’s be honest.
Teaching today is not just teaching.
-
Lesson planning takes hours
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Worksheets need to be created
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Admin emails keep coming
-
Reports never end...
The AI Gold Rush and the Unemployed Software Graduate
In a noisy AI economy, fresh graduates should resist two temptations: chasing gold too quickly, and buying too many shovels too early.
Graduating with a software engineering degree is supposed to feel like the start of something.
But for...
Computational Metaphysics: When Bazi Meets Machine Learning
An exploration of computational metaphysics, where Bazi meets machine learning to study symbolic reasoning, hybrid AI systems, and human interpretability.
Over the past year, I have been increasingly uncomfortable with how AI‑based metaphy...
When a University Hosts an AI Tool Some People Don’t Trust
When a University Hosts an AI Tool Some People Don’t Trust
18 April 2026, institution is hosting a workshop featuring TRAE, an AI tool developed by ByteDance. Almost immediately, questions surfaced:
- Isn’t ByteDance controversial?...
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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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