DocumentIO — Building a Unified API for 7 Document Formats in C#
DocumentIO — Building a Unified API for 7 Document Formats in C This is part of my series on building the VNML Agent Framework — a 100% local agenti…
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NLP with .NET
NLP with .NET A deep-dive walkthrough of Natural Language Processing for .NET developers — covering text classification, sentiment analysis, named e…
How to Structure Production Apps with Vertical Slice Architecture in .NET in 2026
Vertical Slice Architecture (VSA) is one of the most popular ways to structure .NET projects today. It structures an application by features instead…
Securing a .NET API with JWT Authentication Using Clean Architecture
When building a RESTful API, securing your endpoints is just as important as the business logic itself. While implementing JWT (JSON Web Tokens) in…
Why Agents Need a Knowledge Base: The Gaps an LLM Can't Fill by Itself
When a team starts building an agent, the first version is very often only a model, a system prompt and a few tools, and for a demo that is usually…
A folder of markdown you can actually browse: OKF4net 0.7 and the interactive okf-render
An Open Knowledge Format bundle is a directory of markdown files with YAML frontmatter. That is what makes it good for agents and for code review: a…
AI Agents
AI Agents A deep-dive walkthrough of building AI agents in .NET — covering agent architecture and the control loop, tool calling and function callin…
Semantic Kernel
Semantic Kernel A deep-dive walkthrough of Semantic Kernel — Microsoft's open-source, .NET-oriented SDK for building AI applications — covering the…
RAG Retrieval-Augmented Generation
RAG — Retrieval-Augmented Generation A deep-dive walkthrough of Retrieval-Augmented Generation for .NET developers — covering RAG architecture, docu…
Aggregates στο Domain-Driven Design: Πώς και γιατί τα χρησιμοποιούμε σε C# και .NET
"Πλήρης οδηγός για Aggregates και Aggregate Roots στο DDD, με πρακτικά παραδείγματα C#, EF Core, Clean Architecture και Business Rules." tags: dotne…
Embeddings & Vector Search
Embeddings & Vector Search A deep-dive walkthrough of embeddings and vector search — covering what embeddings are and how text embeddings are pr…
LLM Application Development
LLM Application Development A deep-dive walkthrough of building applications on top of large language models — covering how LLMs actually work and w…
BOLA in ASP.NET Core: Why Authenticated Users Can Still Read Someone Else's Data
A pentest report came back with a finding rated "high": change the invoiceId in GET /api/invoices/{invoiceId} , and a logged-in user from Tenant A c…
5 C# DateTime bugs that pass every test
Date and time bugs are the worst kind: the code is correct on the day you test it, in the time zone you test it in. Then the clocks change, or a use…
European Law for .NET Developers: What the GDPR Means for Your Code
Hey lovely readers, The GDPR has been around since 2018, and most of us have heard of it. But when I ask developers what it actually means for the c…
Result Pattern στο ASP.NET Core: Πώς να διαχειριζόμαστε επιτυχίες και αποτυχίες χωρίς να βασιζόμαστε στα Exceptions
Εισαγωγή Ένα από τα σημαντικότερα ζητήματα στον σχεδιασμό μιας σύγχρονης εφαρμογής είναι ο τρόπος με τον οποίο διαχειριζόμαστε τις αποτυχίες. Στην κ…
Human-in-the-Loop AI Drafts in ASP.NET Core: Approval Queues, Audit Trails, and Safe Sending
When I add AI to an existing support, ERP, or CRM application, my first release boundary is simple: the model drafts; an authorized person decides w…
AI + Temporal in .NET 10: Building Reliable AI Workflows
AI applications are no longer just: Request ↓ AI Model ↓ Response Real-world AI applications often involve multiple steps: User Request ↓ AI Analysi…
Beyond Background Jobs: Building Durable Workflows with Temporal and .NET 10
If you've worked with .NET applications, you've probably written code like this: await ChargePayment(); await ReserveInventory(); await GenerateInvo…
I Love .NET Blazor. Now It Can Build Agentic UI, Not Just Chat Boxes
Introduction I love Blazor so much. I have used it to build more than 10 projects this year. One thing I enjoy is that I can build interactive web a…
Retry Storms: How a 502 Fix Created a Thousand Duplicate Orders
Retry Storms: How a 502 Fix Created a Thousand Duplicate Orders In modern distributed systems, transient failures are inevitable. Timeouts, circuit…
AI proposes, deterministic logic disposes: the pattern that keeps AI production-ready
TL;DR Three layers: AI proposes with a confidence score, deterministic business rules validate, a human settles what is left. AI never writes to the…
The Complete Picture: Azure Container Apps + Dapr Reference Architecture for .NET
What does the finished stack buy for its floor, and which seam between its layers breaks first? Priced in West Europe, the layers in front of the co…
EF Core vs Marten and Polecat
EF Core is the .NET default long after the thing you are saving has stopped being a set of rows. An order with its lines, discounts, and address is…
Building the Harness: A Production-Minded AI Agent Architecture in .NET
This is the implementation companion to the LinkedIn article The Model Isn’t Your Agent. The Harness Is . That article makes the architectural argum…
Building a Sovereign Cryptography Suite in .NET: 11 Engines, Multi-Jurisdictional Hashes, and Anti-Keylogger Shields
1. 🚀 Introduction & Background In modern software engineering, data security is often treated as a solved problem through a mono-cultural lens.…
Talking to a PLC from C#, Part 3: Safe Writes and a Clean Abstraction Layer
We've come a long way. In Part 1 we connected a C# app to a Beckhoff PLC and did our first read and write. In Part 2 we stopped polling, subscribed…
Bootstrap for Blazor: Styling the Task Tracker
This is the final post in the series. The Task Tracker has been built, refactored, rendered, and made interactive, genuinely working since Part 4, b…
Durable Task in the Real World: What Problems Does It Actually Solve?
I've never exactly hidden the fact that I think Durable Task is cool. But "cool" is not a use case. Some people would probably say a chainsaw is coo…
Как и зачем я сделал свой маппер
Я не люблю Clean Architecture, не люблю DTO и не люблю мапперы. Они превращают сохранение одной строки в базу в путешествие через четыре проекта, тр…