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How to build a reusable Excel export service in ASP.NET Core

This article will teach you how to export any list into Excel in C# using the ClosedXML library. Steps to complete Create the data model with dummy da…

Building software in C#: part 2 - code architecture

In my previous post, I described how historical trends shaped our (or at least my) perception of software architecture. However, with experience and s…

Sidemark: Active Telemetry Comments for C#

OpenTelemetry has quietly become table stakes. That's a good thing, but if you've instrumented a real codebase, you know the tax. A method that does o…

Building software in C#: part 1 - history.

3-Layer Architecture When I started programming in C# back in 2010 in Prague (Czech Republic), the dominant trend was the 3-layer monolithic architect…

Пишем Third Person Controller на MonoGame. Часть I

В этой серии туториалов мы реализуем простой Third Person Controller на базе MonoGame. Серия рассчитана на читателей, уже знакомых с основами MonoGame…

Stop Over-Engineering Your UI: Material 3 for Blazor (Without the JS State Management Nightmare)

If you have built a web app in the last five years using the dominant JavaScript frameworks, you know the drill. You start a simple project, and withi…

Mastering Dependency Injection in .NET: A Software Engineer's Secret Weapon

Imagine you are building a modern car. Instead of welding the engine directly to the chassis, you bolt it in. Why? Because if the engine breaks—or if …

An Official Claude SDK for .NET? Yes, Really.

If you've been building with Claude in .NET, you've probably leaned on one of the lovely community SDKs Anthropic.SDK by tghamm, or tryAGI.Anthropic b…

Securing AI Generated Code: You Ship It, You Own It

A developer merges a pull request on Friday afternoon. Monday morning, a security review flags a SQL injection flaw in a new endpoint. When you ask wh…

Adding Gemma 4 speech recognition to a .NET desktop app: the llama-server sidecar that survived

In April 2026 Google shipped Gemma 4, a multimodal model with a native audio path. I wanted to add it to Parlotype, my .NET 10 dictation app, as a sec…

Run OpenAI Codex CLI on Claude, Gemini, or Llama — in 50 lines of C#

OpenAI's Codex CLI ships with a great editor-agent UX: shell tool, apply_patch , plan tracking, the lot. The catch — as of February 2026 it only speak…

Building an Autonomous AI Hiring Agent with Multi-Agent Runtime Orchestration 🚀

Building an Autonomous AI Hiring Agent with Multi-Agent Runtime Orchestration 🚀 The future of AI systems is not just single prompts — it's autonomous …

How to use the Specification Pattern to Clean Up Query Logic in C#, .NET

The Problem I was building a content management platform with a .NET 9 backend. The platform manages videos, articles, lyrics, and a bunch of lookup t…

Log Aggregation in .NET 8: Seq vs ELK vs Loki

I have seen the same setup at more companies than I can count: every service writing logs to stdout, a few rotating files scattered across VMs, maybe …

Content Pipeline в MonoGame: почему я его не использую

Введение Content Pipeline — это официальный способ работы с ассетами в MonoGame. Однако в сообществе уже давно существует немалая группа разработчиков…

One container to replace Grafana + Loki + Tempo + Prometheus

The standard observability stack: Grafana + Loki + Tempo + Prometheus. Four services to deploy, four configs to learn, dashboards to set up before you…

Clean Architecture in .NET Explained (The Dependency Rule)

If you've ever upgraded EF Core and had to touch 300 files, or tried to unit-test a single business rule and realized you needed a running database fi…

Introducing LogicGrid — Multi-Agent AI Orchestration for .NET

If you've spent any time building with LLMs, you've probably hit the wall: a single prompt only gets you so far. Stuff too much into one prompt and th…

I kept improving my .NET order pipeline after a CTO left feedback. Here is where it ended up.

A few weeks ago I published an article about an event-driven order pipeline I built in .NET. A CTO named Andrew Tan left a comment pointing out that m…

.NET (OK, C#) finally gets union types

Building a local-first AI tutor for my daughter (and 10–14 year-olds in Austrian schools) with Gemma 4

This is a submission for the Gemma 4 Challenge: Build with Gemma 4 My daughter is 13. Like most students her age in Austria, she has an iPad. Like mos…

XMLPayments — The Hidden Backbone of Modern Financial Orchestration

Introduction When people talk about fintech innovation, they usually highlight APIs, JSON, and mobile-first experiences. Yet beneath the surface, tril…

MonoGame — игровой движок для тех, кто любит изобретать велосипеды

При создании новой игры, одним из первых вопросов является выбор игрового движка. Основные кандидаты у всех на слуху: Unity, Unreal Engine и Godot. Но…

Microsoft Just Shipped MCP Governance for .NET. Here's What It Actually Enforces.

MCP adoption is accelerating fast enough that "connect your tools to an agent" is now a one-afternoon task. Governing what those tools are actually al…

This week in Cursor + .NET — 3 rules + 4 essays (week ending May 22, 2026)

Every weekday a single, opinionated rule for senior C#/.NET engineers using Cursor. Here's the full week in one read — canonical posts live on the Age…

Fixing Google BigQuery Auth Proxying

TL;DR builder.Credential = credential; - Fails to route authentication traffic through the proxy. builder.GoogleCredential = credential; - Successfull…

Building a Secure Real-Time Messaging App with .NET 8 and Angular 18

A deep dive into JWT authentication, AES-256-GCM encryption, SignalR, and production security patterns. Introduction Real-time messaging apps are ever…

The Scoped Singleton DI Bug Your AI Just Suggested

The Scoped→Singleton DI bug your AI just suggested (and how to catch it) Of all the bugs that ship to production silently, the captured-dependency lif…

How to open calc.exe from S&Box

An EF Core alternative for .NET apps with complex object graphs — full LINQ, no migrations, no DbContext

Today I'd like to slow down a bit and talk about redb.Core — the data engine at the heart of the RedBase ecosystem. The other pieces ( redb.Route for …