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About Me
Scott Galloway | CTO | Head of Engineering | Systems Architect | Remote I'm a technical leader with over 30 years building and scaling engineering teams and products. I've served as CTO, Head of...

Wednesday, 31 December 2025 22:30

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10 minute read

DocSummarizer Part 3 - Advanced Concepts: The "I Went Too Far 🤦" Deep Dive
This is Part 3 of the DocSummarizer series: Part 1: Building a Document Summarizer with RAG - The architecture and why the pipeline approach beats naive LLM calls Part 2: Using the Tool - Quick-start...

Sunday, 21 December 2025 12:00

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29 minute read

DocSummarizer Part 2 - Using the Tool
GitHub release .NET Version This is Part 2 of the DocSummarizer series. See Part 1 for the architecture and patterns, or Part 3 for the deep technical dive into embeddings and retrieval. Turn...

Sunday, 21 December 2025 11:00

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21 minute read

Stop Shoving Documents Into LLMs: Build a Local Summarizer with Docling + RAG
Here's the mistake everyone makes with document summarization: they extract the text and send as much as fits to an LLM. The LLM does its best with whatever landed in context, structure gets...

Sunday, 21 December 2025 10:00

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13 minute read

Fetching and Analysing Web Content with LLMs in C#
📌 Note: This article teaches the fundamentals of web content extraction with LLMs using the simplest possible approach. For production use cases (web summarization, document analysis, agent tools),...

Friday, 19 December 2025 10:00

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16 minute read

How to Analyse Large CSV Files with Local LLMs in C#
Here's the mistake everyone makes: they try to feed their CSV into an LLM. Don't. LLMs should generate queries, not consume data. You've got a 500MB CSV file and want to ask "What's the average order...

Thursday, 18 December 2025 10:00

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17 minute read

Why I Don't Use LangChain (and What I Do Instead)
I'm a .NET developer. When I started building LLM-powered systems, everyone pointed me toward LangChain. "It's the standard," they said. "All the examples use it." And they were right — if you're in...

Thursday, 18 December 2025 10:00

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14 minute read

Multiplatform AOT with SQLite: How to get it working!
Native AOT promises to turn your .NET applications into tiny, self-contained executables that start instantly and run anywhere—no runtime installation required. It's magic when it works. But add...

Tuesday, 16 December 2025 15:00

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23 minute read

Building a "Lawyer GPT" for Your Blog - Part 9: Document Ingestion with Docling
Welcome to Part 9! In previous parts, we've built a robust RAG system that processes markdown blog posts and makes them searchable through semantic embeddings. Now it's time to expand our capabilities...

Monday, 15 December 2025 22:45

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9 minute read

mostlylucid.ephemeral.complete; a strange concurrent systems pattern system in an LRU cache.
Well this has been my obsession for the past week. See the previous parts and what led to this; 'What if an LRU was an execution context.'. Now it's a set of 30 Nuget packages covering most major...

Sunday, 14 December 2025 13:35

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20 minute read

Building a Frontend Before the API is Ready: Without Brittle Fixtures
How many times have you been blocked waiting for backend APIs to be ready? Or spent hours maintaining brittle mock data that becomes stale the moment requirements change? Enter mostlylucid.mockllmapi...

Saturday, 13 December 2025 14:30

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14 minute read

Ephemeral Signals - Turning Atoms into a Sensing Network
A tiny primitive that turns concurrent work into a coordinated, adaptive system. "The Ephemeral Signals Pattern" In Part 1 we built ephemeral execution - bounded, private, self-cleaning async...

Friday, 12 December 2025 16:00

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22 minute read

Building a Reusable Ephemeral Execution Library
In Part 1: Fire and Don't Quite Forget, we explored the theory behind ephemeral execution - bounded, private, debuggable async workflows that remember just enough to be useful and then evaporate. This...

Friday, 12 December 2025 14:00

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13 minute read

Fire and Don't Quite Forget - Ephemeral Execution Without State
Most async systems either remember too much (logs, queues, persisted junk you never wanted)… or they remember nothing at all (fire-and-forget black holes that vanish the moment something goes...

Friday, 12 December 2025 12:00

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15 minute read

Learning LRUs — When Exceeding Capacity Makes Your System Better
Most systems degrade when overloaded. Memory fills up, queries slow down, users complain, servers crash. A few unusual ones get better. This article shows how an LRU-based behavioural memory becomes...

Tuesday, 09 December 2025 12:00

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19 minute read

Cooking with DiSE (Part 4): Building Systems That Learn, Adapt, and Evolve
Most software architectures assume the system is static. DiSE assumes the system is alive. Note: This is Part 4 in the "Cooking with DiSE" series. See Part 1, Part 2: Graduated Apprenticeships, and...

Monday, 08 December 2025 12:00

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15 minute read

mostlylucid.botdetection: Fighting Back Against Scrapers (Part 1)
Scrapers are about to start using AI to mimic real users - so I built a bot detector that learns, adapts, and fights back. Key concept: Behavioural Routing. This enables a new category — where...

Monday, 08 December 2025 07:00

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13 minute read

Thinking in Systems: A Retrospective on a Life Spent Trying to Understand How Things Fit Together
By someone who can't stop analysing patterns, even their own. As the category says, this is a far more personal essay than my usual work. I don't mind if you skip it...but if it resonates leave a...

Sunday, 07 December 2025 12:00

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10 minute read

Data Hierarchies Part 1.5: PostgreSQL ltree with EF Core
PostgreSQL's ltree extension gives you materialised paths with database-native superpowers: GiST indexes, specialised operators like @> and <@, and powerful pattern matching. If you're committed to...

Saturday, 06 December 2025 09:50

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15 minute read

Data Hierarchies Part 1.4: Nested Sets with EF Core
Nested sets encode the entire tree structure into just two integers per node - Left and Right boundaries from a depth-first walk. Finding all descendants becomes a simple range query, and ORDER BY...

Saturday, 06 December 2025 09:40

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16 minute read

Page 1 of 38 (Total items: 747)
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