Chris Pietschmann

C#: Should This Service Be Singleton, Scoped, or Transient?

Sun, 24 May 2026 16:10:00 -0500

One of the most common ASP.NET Core dependency injection questions sounds simple:

In C#, When Should You Use Exceptions, Result Objects, or Validation Errors?

Sun, 24 May 2026 13:45:00 -0500

Every C# developer eventually runs into this design question, usually right after a perfectly reasonable method starts returning chaos.

Disposable Software Is the Future: Why Composable Architecture Beats Monoliths and Overbuilt Microservices

Wed, 20 May 2026 23:00:00 -0500

Most software systems do not fail because they were poorly written on day one. They fail because they become too expensive to change on day one thousand.

C#: How to Refactor Legacy Code Safely

Mon, 11 May 2026 06:00:00 -0500

Legacy C# code is usually not dangerous because it is old. It is dangerous because you do not fully know which parts are stable, which parts are accidentally correct, and which parts are one small change away from breaking production.

C#: Inheritance vs Composition — When to Use Each and Why AI Can't Decide for You

Fri, 08 May 2026 06:00:00 -0500

Every C# developer eventually hits this question: should I use inheritance or composition here? And if you ask an AI — or search for articles online — you’ll get the standard answer: “favor composition over inheritance.” That advice isn’t wrong. But it isn’t enough, either.

C#: Should This Be a Class, Record, Struct, or Interface?

Thu, 07 May 2026 08:00:00 -0500

Every time you add a new type to a C# codebase, you face the same quiet decision: class, record, struct, or interface? And once you pick class, a second wave of questions arrives — should it be abstract? sealed? static?

Remembering Planet Source Code: Sharing Code Before GitHub Made It Easy

Tue, 05 May 2026 19:20:00 -0500

Every once in a while, something from the early days of my software development journey resurfaces and brings with it a flood of memories. Recently, I came across a PlanetSourceCode.com archived GitHub page that lists some old code submissions I contributed more than 20 years ago.

8 AI Productivity Tips That Took Me Years to Learn (So You Don't Have To)

Sat, 02 May 2026 08:45:00 -0500

If you work in IT, you should be automating repetitive work. That has always been true. But in today’s landscape of agentic AI tools, it is easier than ever to do it well. Tools like GitHub Copilot and Claude Code are helping tremendously, and even conversational tools like ChatGPT can accelerate your workflow when used deliberately.

Agentic AI Tools Are Orchestrators, Not Magic

Fri, 01 May 2026 08:15:00 -0500

The LLM is not doing everything. It is the last 5% of a much larger system.

C# / .NET: The Cleanest Way to Introduce a New Cross-Cutting Concern

Fri, 01 May 2026 08:00:00 -0500

Logging, validation, caching, retries, authorization, telemetry, auditing. Every non-trivial .NET application accumulates cross-cutting concerns — behavior that applies broadly but doesn’t belong in the core business logic of any single feature.