Part 8: Persistence and State - EF Core, Migrations, and Reliability
In the last part, we looked at how expressions make your workflows dynamic. Today, we are discussing the backbone of any production-ready system: Pers…
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AI Evals, Part 3: Golden Datasets That Dont Lie
Part 3 of a series on building production AI on .NET. Part 1 was the overview; Part 2 was error analysis. Now we turn the failure taxonomy you built i…
Build and deploy an MCP server with .NET and Azure Container Apps
MCP servers do not have to be local stdio processes. If you want a tool surface that can run as a normal HTTP service, scale like an app, and be reach…
Dev Log: deleting code and breaking the build on purpose
Day one of building Munchausen v1.0 started with deleting the existing implementation and deliberately breaking its replacement. Munchausen is a mock-…
Starving the Garbage Collector: A Pragmatic Guide to Zero-Allocation C#
Over the last few weeks, I’ve open-sourced a suite of high-performance, zero-dependency C# engines. This includes a native DataFrame library ( Glacier…
Docusaurus – The Modern Docs Framework
1. What is Docusaurus? Docusaurus is an open‑source static‑site generator focused on documentation. Built and maintained by Meta (formerly Facebook), …
Azure Application Insights: Monitoring, KQL Queries and Observability in Production
At 2am on a Tuesday, an IP address change in Microsoft infrastructure silently broke our entire integration pipeline at Blue Yonder. Messages stopped …
How I Built an AI-Powered Adult (Porn) Content Scanner for Windows (And the Engineering Challenges I Didn't Expect)
Building an AI-Powered Content Scanner for Windows: Performance, Multithreading and GPU Acceleration in .NET Building software always looks straightfo…
The AI-generated C# that passes review and breaks in production
TL;DR — AI assistants are producing C# that looks correct and passes review, but reintroduces production regressions we spent years training out of te…
Why Squirix uses a strict client/server architecture for a .NET distributed cache
Squirix 0.1.0 is an early preview of a .NET distributed cache. A typed client SDK talks to a remote server over gRPC; the server owns state, routing, …
Two Devs, One Marketplace: The Boring Decisions That Saved Us (SvelteKit + .NET)
There are two people on this project. My friend owns the backend on .NET. I do everything else: design, product, and the entire frontend on SvelteKit.…
I Built the .NET Roadmap I Wish I Had at the Start of My Career
Hi DEV Community 👋 "We’ve all been there: you finish a tutorial, the code runs, but you still feel like you’re missing the 'why' behind the architectu…
After 4 months solo: shipping a Windows tray AI hotkey on .NET 8 + WPF (and the Win32 paste-back rabbit hole)
I spent 4 months of nights and weekends building CapyBro — a Windows tray app that runs AI on any selected text via a global hotkey. Native .NET 8 + W…
QuickBooks API Is a Headache
There is a certain kind of frustration that only developers know. It is not the frustration of a hard problem. Hard problems are satisfying. It is the…
5 Surprises Migrating .NET Framework to .NET 9 with Claude Opus
5 Surprises Migrating .NET Framework to .NET 9 with Claude Opus My workflow before this little experiment was pretty standard for a .NET Framework to …
Learn ASP.NET from Scratch
If you read my last post , you read all of the things that I'd like to learn this year, starting with ASP.NET Core. I've spent the past week gathering…
Building AutoStack.Identity: A Zero-Dependency .NET 10 Library for SAML 2.0, JWT, and XML Signing
The Problem That Started This We were building a healthcare connectivity platform — multi-tenant, Azure-hosted, integrating with enterprise IdPs via S…
AI doesn't fail because the model is bad. It fails because there's nothing underneath it
There's a question every system runs into the moment it goes to production and starts doing real things: what exactly happened, in what order, against…
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…
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 …
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…
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…
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…
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…
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…
Blazor vs. Angular: Which web framework to choose and why?
Angular and Blazor are often compared because they solve a similar problem: building modern, interactive web applications. This comparison raises basi…
Caching in ASP.NET Core
Caching in ASP.NET Core — A Complete Guide Caching is the single most impactful performance optimization you can apply to a web app. The idea is simpl…
Welcome to the Distributed Systems World — The Challenges Nobody Warned You About
title: "Welcome to the Distributed Systems World — The Challenges Nobody Warned You About" published: false description: A friendly tour of the six bi…