Dexterlung

I roast coffee. I also built the whole shop — storefront, ERP, roasting floor — solo with AI. Eight months in production. Every pothole I hit: coffeeshooters.com/potholes

Taiwan Joined on Jul 15, 2026 https://coffeeshooters.com/potholes

Work

Solo founder, coffeeshooters — AI-built commerce + ERP running a real coffee business

Dexterlung

Aug 24

I Kept Feeling Like I Was Wasting My Time — While Designing a Cross-Model Controlled Experiment

#ai #programming #solodev

6 min read

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Dexterlung

Aug 22

How I Ask AI Changed: From "Fix This" to "Recalibrate Me"

#ai #programming #solodev

6 min read

Dexterlung

Aug 20

The antivirus said 'no malware detected'. It was sitting right there on the disk.

#ai #programming #solodev

6 min read

Dexterlung

Aug 18

NVIDIA's CEO says future companies will be built on harness engineering. Mine has been for six months — here's the half he left out

#ai #programming #solodev

8 min read

Dexterlung

Aug 16

Dual-Graph Drift Detection for Solo Devs: What Happens When Your Docs and Your Code Start Talking to Each Other

#ai #programming #solodev

13 min read

Dexterlung

Aug 13

I Thought I Needed a Smarter AI. What I Needed Was Something That Reconciles (Part 2)

#ai #programming #solodev

12 min read

Dexterlung

Aug 12

"I Wired Five Open-Source Tools Into One Command (Part 1): The Report Was All Green, the Game Was Dead"

#ai #programming #solodev

8 min read

Dexterlung

Aug 10

I Built My AI Team a Blackboard — How to Stop Parallel Claude Sessions From Colliding

#ai #programming #solodev

8 min read

Dexterlung

Aug 6

spec-sonar: The Complete Design Record (Part 2) — Fable's Review, a Real-World Conflict, and the Two-Repo Decision

#ai #programming #solodev

11 min read

Dexterlung

Aug 5

spec-sonar: The Complete Design Record (Part 1) — From One Idea to an Open-Source Toolchain

#ai #programming #solodev

9 min read

Dexterlung

Aug 2

Audio Plays on Desktop but Not on iPhone / iPad — The Culprit Is the MP4 moov Atom

#ai #programming #solodev

4 min read

Dexterlung

Jul 31

Series reading guide — How to pick which of these 9 Trace Lock posts to read

#ai #programming #solodev

5 min read

Dexterlung

Jul 30

I built a vertically-integrated commerce system with AI — and accidentally discovered 4 governance patterns

#ai #programming #solodev

7 min read

Dexterlung

Jul 30

sql-only-trace Engineering Edition — Testing DB-Side Pure Logic

#ai #programming #solodev

13 min read

Dexterlung

Jul 30

Combined Offense + Defense (Engineering Edition) — Cross-Project Reuse Matrix and When Not to Use

#ai #programming #solodev

14 min read

Dexterlung

Jul 29

Offense + Defense combined — How the two pair up (for self-taught developers)

#ai #programming #solodev

8 min read

Dexterlung

Jul 29

Offensive audit, engineering edition — the 6-piece fix pattern in detail

#ai #programming #solodev

17 min read

Dexterlung

Jul 28

Offensive audit — How to periodically audit a whole business flow (for self-taught developers)

#ai #programming #solodev

6 min read

Dexterlung

Jul 28

Defensive Trace Lock, engineering edition — 5 artifacts in detail

#ai #programming #solodev

10 min read

Dexterlung

Jul 28

Defensive Trace Lock — How to lock down a single cross-layer relationship (for self-taught developers)

#ai #programming #solodev

8 min read

Dexterlung

Jul 26

CREATE OR REPLACE didn't replace: one optional parameter, and my API 400'd in production

#postgres #backend #webdev #programming

6 min read

Dexterlung

Jul 21

"Why does the AI always leave a few blocks out?"

#ai #programming #solodev

6 min read

Dexterlung

Jul 15

The same bug, fixed three times: all my guards lived on the write side

#webdev #programming #postgres #backend

6 min read

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Dexterlung

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Writing Debut

I Kept Feeling Like I Was Wasting My Time — While Designing a Cross-Model Controlled Experiment

Want to connect with Dexterlung?

How I Ask AI Changed: From "Fix This" to "Recalibrate Me"

The antivirus said 'no malware detected'. It was sitting right there on the disk.

NVIDIA's CEO says future companies will be built on harness engineering. Mine has been for six months — here's the half he left out

Dual-Graph Drift Detection for Solo Devs: What Happens When Your Docs and Your Code Start Talking to Each Other

I Thought I Needed a Smarter AI. What I Needed Was Something That Reconciles (Part 2)

"I Wired Five Open-Source Tools Into One Command (Part 1): The Report Was All Green, the Game Was Dead"

I Built My AI Team a Blackboard — How to Stop Parallel Claude Sessions From Colliding

spec-sonar: The Complete Design Record (Part 2) — Fable's Review, a Real-World Conflict, and the Two-Repo Decision

spec-sonar: The Complete Design Record (Part 1) — From One Idea to an Open-Source Toolchain

Audio Plays on Desktop but Not on iPhone / iPad — The Culprit Is the MP4 moov Atom

Series reading guide — How to pick which of these 9 Trace Lock posts to read

I built a vertically-integrated commerce system with AI — and accidentally discovered 4 governance patterns

sql-only-trace Engineering Edition — Testing DB-Side Pure Logic

Combined Offense + Defense (Engineering Edition) — Cross-Project Reuse Matrix and When Not to Use

Offense + Defense combined — How the two pair up (for self-taught developers)

Offensive audit, engineering edition — the 6-piece fix pattern in detail

Offensive audit — How to periodically audit a whole business flow (for self-taught developers)

Defensive Trace Lock, engineering edition — 5 artifacts in detail

Defensive Trace Lock — How to lock down a single cross-layer relationship (for self-taught developers)

CREATE OR REPLACE didn't replace: one optional parameter, and my API 400'd in production

"Why does the AI always leave a few blocks out?"

The same bug, fixed three times: all my guards lived on the write side