The PRNG draw-tape: eager versus lazy
Munchausen makes one absolute promise: same seed, same data, forever, on any machine. A persona is "generated once," which raises a question that soun…
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Your RAG Eval Isn't Flaky. Your Retrieval Is Non-Deterministic.
Same query. Same documents. Same model. And the RAG eval can still hand back a different Recall@8. Not because the model is flaky. Because of an ORDER…
EF Core Mapping for DDD — for Dummies
You built a nice domain model with rules and private properties — but EF Core wants simple classes with public get; set; . Don't worry. This guide sho…
SDLC in the AI Era with Spec-Driven Development
AI can generate an endpoint, a test fixture or a deployment manifest in seconds. That speed is useful, but it does not solve the expensive part of sof…
C# Async/Await Made Simple
Hi lovely readers, Today we are looking at async and await . If these two words have ever shown up in your code and made you a little nervous, do not …
NGB Platform v1.3.1: CRM Demo Built with NuGet and npm Packages
NGB Platform v1.3.1 is released. This release is an important milestone for the project because it shows something I wanted to prove from the beginnin…
EU e-invoicing for developers: XRechnung vs ZUGFeRD vs ebInterface vs Peppol
If you build accounting, ERP, shop or billing software and sell into Europe, e-invoicing has probably landed on your roadmap whether you wanted it or …
Building a tiny Windows tray app with .NET 9 Native AOT and raw Win32
I built CreditMeter, a small Windows tray app that shows GitHub Copilot AI-credit usage like a taxi meter. Why I built it Agentic coding makes AI usag…
The AI Senior Dev Dilemma: Am I Coding or Just Prompting?
So, I’m still fairly new to this dev thing—five years full-time, now a senior dev. I was recently told to pick up Angular for a new project at work, b…
What is OpenIddict: the .NET framework developers choose for OAuth 2.0 and OpenID Connect
I've been writing a short series on OpenIddict basics while preparing IdentitySuite's v3.0 release — here's part 1. The .NET framework developers choo…
Requests timing out but CPU normal: thread pool starvation in ASP.NET
This post was originally published on MatrixTrak.com — the production reliability toolkit for trading bot operators and .NET engineers. When requests …
⚡ Supercharging .NET Development with GitHub Copilot and Testcontainers
Introduction Modern development isn’t just about writing code—it’s about writing better code, faster . With AI-assisted tools like GitHub Copilot and …
redb 3.3.0: решение уровня энтерпрайз на .NET — своя БД, свой Apache Camel и рантайм с дашбордом (и всё это бесплатно)
Когда говорят «энтерпрайз-стек на .NET», обычно имеют в виду зоопарк: база от одного вендора, шина от другого, ORM с миграциями, отдельный оркестратор…
Custom Comparers Inside Collection Expressions: The Tiny C# Feature That Makes Sets Feel Complete
There is a specific kind of code that feels small but annoying every time you write it. Not broken. Not complicated. Just… slightly clunky. For me, on…
Stop writing a test-data builder for every class in .NET
If you've ever written test data by hand, you know the ritual: a PersonBuilder , an OrderBuilder , an AddressBuilder … one hand-written builder per cl…
Web APIs & REST: Building HTTP-Based Services the Right Way
Web APIs & REST: Building HTTP-Based Services the Right Way A practical guide to REST principles and building well-designed HTTP APIs — covering r…
Pre-allocate Like a Pro
I’ve been playing with C# 15 quite a bit this week, and after yesterday’s post about the new with() syntax I started thinking about something I’ve alw…
HTML to PDF in C#: The Complete Guide
This is a complete, hands-on guide to converting HTML to PDF in C# with the SelectPdf library for .NET . It works up from a three-line conversion to a…
Azure Logic Apps vs Function Apps: Choosing the Right Tool for the Integration
Two Azure services can look nearly identical on paper. Both connect systems. Both can call an external API, transform data along the way, and handle e…
LLM Migration: Fable, Codex, and Claude Code on nopCommerce
Switching to a Harder Migration Target The first comparison used eShopOnWeb , which was useful for testing the workflow, but it is still a relatively …
Retro-Downfall Arcanum
🎲 A Tale of Inference Woes 🎲 Thy context window overflows with dread, Thy API keys scattered 'cross thy thread. Thou switchest providers mid-conversat…
Testing AI Agents in .NET with skUnit: Step-by-Step
One of the biggest challenges when building AI agents isn't writing the agent, it's testing it. Traditional unit tests work great for deterministic co…
ASP.NET Core Identity with Supabase PostgreSQL | Login & Registration Tutorial (.NET 9)
In this tutorial you will build a complete authentication system step by step, connecting ASP.NET Identity to a free hosted PostgreSQL database on Sup…
MCP Deep Dive, Part 1: Why Model Context Protocol Kills Integration Glue Code for Good
Your AI roadmap does not die from a bad model. It dies from integration glue code — the hand-written adapter that wires agent number four to backend n…
AI Code Review That Engineers Actually Trust: The Pipeline We Run on Every Pull Request
Bolting an LLM onto your pull requests is a weekend project. Building AI code review that your engineers don't disable within two weeks is the actual …
Running Local AI Models in .NET with Ollama (Step-by-Step Guide)
Build AI-powered ASP.NET Core applications without relying entirely on cloud providers. Introduction If you've been experimenting with AI recently, yo…
Microsoft's 99 AI Skills Are Interesting. The Bigger Story Is What They Represent.
AI coding assistants already understand .NET. The next challenge is teaching them how your team builds software. One of the most interesting things ha…
Blazor JWT Authentication with Radzen & .NET 10: Complete Starter Template
Learn secure authentication in Blazor with this production-ready starter template. JWT tokens, cookies, Radzen UI, and clean architecture explained. T…
GraphQL Query & Mutation Architecture, A Production Deep Dive
Author: Erwin Wilson Ceniza Published: July 2, 2026 Tags: GraphQL | HotChocolate | BatchDataLoader | CQRS | Outbox Pattern | Apollo Federation | .NET …
Stop your AI assistant from hallucinating PDF APIs: SelectPdf AI Tools
AI coding assistants are great at .NET boilerplate, but ask one to generate PDF code and it will happily invent a method that doesn't exist, or reach …