Hideki Mori

Building LDX hub — an AI document processing platform. Writing about LLM systems, API design, and the boring decisions that make things work in production.

Tokyo, Japan Joined on Apr 29, 2026 https://gw.portal.ldxhub.io

Work

Independent engineer · Building LDX hub

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Hideki Mori

Aug 3

Two people who never bent — and what I learned from them

#career #leadership #softwareengineering #startup

5 min read

Hideki Mori

Jun 3

Build a multi-step n8n Form with dynamic dropdowns (no plugin needed)

#n8n #automation #javascript #productivity

8 min read

Hideki Mori

Aug 24

The work of staying

#softwareengineering #career #devjournal

4 min read

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Hideki Mori

Aug 17

The doors were already there

#softwareengineering #architecture #programming #ai

3 min read

Hideki Mori

Aug 11

The cheap tier reads one number

#ai #llm #ocr #benchmark

7 min read

Hideki Mori

Aug 10

Translation was a special case all along

#softwareengineering #architecture #ai #startup

4 min read

Hideki Mori

Aug 4

The cheap tier doesn't go blank — it writes

#ai #llm #ocr #benchmark

7 min read

Hideki Mori

Jul 28

Reading under the stamp

#ai #llm #ocr #benchmark

6 min read

Hideki Mori

Jul 27

Three failures I still think about

#softwareengineering #career #debugging #programming

7 min read

Hideki Mori

Jul 21

The model corrected reality

#ai #llm #ocr #benchmark

4 min read

Hideki Mori

Jul 20

I survived 24 years because I'm lazy

#discuss #career #productivity #ai

7 min read

Hideki Mori

Jul 15

Where vision models stop reading — and start inventing

#ai #llm #ocr #benchmark

7 min read

Hideki Mori

Jul 14

When AI can't read, it invents — but it still sees the shape

#ai #llm #testing #softwareengineering

7 min read

Hideki Mori

Jul 13

The graph nobody is watching

#softwareengineering #database #devops #monitoring

7 min read

Hideki Mori

Jul 7

The example is the schema: extracting Japanese qualified invoices to JSON

#api #ai #json #tutorial

5 min read

Hideki Mori

Jul 6

How I removed the middleman, one phone call at a time

#softwareengineering #architecture #devops #business

6 min read

Hideki Mori

Jun 29

The 3-line discipline

#softwareengineering #productivity #api #debugging

6 min read

Hideki Mori

Jun 24

Billing asynchronous work exactly once

#api #architecture #billing #distributedsystems

4 min read

Hideki Mori

Jun 22

Write the code well once, the spec stops bothering you

#softwareengineering #architecture #design #backend

6 min read

Hideki Mori

Jun 17

Two patterns, five services, one n8n workflow

#n8n #automation #architecture #tutorial

8 min read

Hideki Mori

Jun 15

Twenty four years, ten DB migrations, zero downtime

#database #devops #architecture #softwareengineering

7 min read

Hideki Mori

Jun 10

Let your n8n template ask for the user's API key

#n8n #automation #security #tutorial

9 min read

Hideki Mori

Jun 8

Abstractions are fine. Starting on them isn't.

#api #architecture #serverless #softwareengineering

7 min read

Hideki Mori

Jun 1

The loop I didn't notice closing

#discuss #ai #productivity #softwareengineering

6 min read

Hideki Mori

May 29

72% -> 75% -> 92%: a reproducible RAG validation

#rag #ai #promptengineering #tutorial

12 min read

Hideki Mori

May 25

Live report: at this speed, you don't theorize. You eliminate.

#api #architecture #ai #productivity

6 min read

Hideki Mori

May 18

Dynamic isn't enough. Operations is the other half.

#api #architecture #backend #devops

4 min read

Hideki Mori

May 11

What survives when you build alone for 24 years

#api #architecture #career #solo

4 min read

Hideki Mori

May 4

Nobody knows when a job will finish. I'd still like to report it accurately.

#api #architecture #backend #devops

4 min read

Hideki Mori

Apr 29

The Accordion Pattern: Why I stopped writing one fat LLM prompt

#llm #ai #architecture #api

4 min read

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