Build a Clean ASP.NET Core API with Signalynx and CQRS
ASP.NET Core controllers often begin with only a few lines of code. As an application grows, however, controllers can slowly become responsible for va…
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C# Crash Course for Beginners
Hey everyone, I'm excited to share my brand-new C# Crash Course for Beginners on YouTube! 🎉 For those of you who are new here, I'm Amir, a software de…
I ported a knowledge-format (OKF) library to zero-dependency .NET — here's what I learned
If you can cat a file, you can read the knowledge base. If you can git clone a repo, you can ship it. No vector database to stand up, no proprietary e…
RockPlayer: Building a Modern Music Player with Angular, ASP.NET Core, Redis, and YouTube
Hello everyone! After publishing my Machine Learning with ML.NET series, I decided to turn the recommendation model into a complete application. In th…
When the disk fills up: pressure and tenant isolation in Squirix preview.7
In my preview.6 article , I wrote about what happens after a write is accepted: binary WAL frames, group commit, crash recovery, and durable retries. …
Single-file INI editor for .NET that preserves formatting by editing the original text
I wrote a single-file INI parser/editor for .NET that preserves formatting using regex instead of dictionaries with JSON support. I've been experiment…
What happens after a write? Reworking Squirix's WAL in preview.6
In my first Squirix article , I wrote about why Squirix keeps a strict boundary between the client and the server. Applications use a typed client ove…
Fuse v4.2, an open source MCP/CLI tool to speed up Claude Code on C# codebases
Fuse 4.2 is an open source .NET global tool that runs as an MCP server or from the command line. I built Fuse after watching coding agents repeatedly …
What MasterMemory Solves—and What It Doesn't: A Practical Guide to Static Game Data in Unity
Introduction When you build games with Unity, you eventually run into the problem of managing static game data—often called master data in Japanese ga…
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…
React displayName Without Strings: A C#-Inspired TypeScript Proxy Trick
It started with a very small problem. In our React component library, we wanted every component to have a nice displayName . So we did the obvious thi…
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…
10 Common Unity Networking Issues (and How to Fix Them)
Multiplayer bugs in Unity rarely look like networking bugs. They look like "the game froze," "the player teleported," or "it worked in the Editor and …
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…
Back to Simplicity: Why We Built CALM, a Lock-Free Single-Thread Messaging Library for .NET
Hello everyone! For many years, I have been developing equipment control software and long-term support products using .NET/C#. Based on the experienc…
I needed up-to-date .NET mapper benchmarks. They didn't exist.
The day AutoMapper stopped being a no-brainer For years, AutoMapper was the default. You added the NuGet package, wrote a profile, and never thought a…
TensorSharp.ai Review: A .NET-Native Way to Run GGUF Models Locally
Why TensorSharp is interesting right now Local AI is no longer just a Python or C++ story. TensorSharp is an open-source, .NET-native inference engine…
Clean Architecture in .NET 8: A 2026 Starter Template with 4 Projects, EF Core, and JWT Auth
I joined a team where the controller was 800 lines long, the business rules were scattered between the controller and the DbContext , and "to run the …
Already using LaunchDarkly or Flagsmith? Here's how to try FtrIO on a single flag
Thinking about trying FtrIO? The new CLI makes it easy to start with just one feature flag If you've been curious about FtrIO (the .NET feature toggle…
Implementing Feature Flags Across Stack
Shipping an application that I didn't have access to was giving me heartburn. So I decided to create a lightweight feature flag tool. The Problem The …
Agent Framework RAG for Agents: Giving Your Agent the Right Context
This is Part 13 of my series on the Microsoft Agent Framework. You can read the original post over on lukaswalter.dev . In the previous article , we l…
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…
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…
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…
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 …
How to Import Excel Data in ASP.NET Core (Upload, Parse and Read Worksheets)
Importing data from Excel is a common requirement in ASP.NET Core applications. Whether you're building an HR system, inventory platform, CRM, or fina…
Winber game maker
I'm building a Vulkan game engine in C# — Meet Winber Engine Hey Dev.to community! 👋 I've been working on something I'm really proud of — a game engin…
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…
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…