Editor's note
I kept this issue deliberately mixed, with AI, cloud tooling, API design, and everyday C# guidance side by side. The GPT-OSS with Ollama piece stands out for showing private local AI in real code, while the rate limiting and ProblemDetails articles are practical reads for anyone shipping ASP.NET Core today.
Azure dev tools, API hardening, and C# patterns
Jasen Fici
August 29, 2025
As we cruise into the joyride that is Friday, take a moment to gaze in the rearview mirror at a week packed with .NET adventures. Reflect on the release builds that didn’t go sideways and the code refactors that brought your solution into a vintage luxury car kind of sleekness. This week's newsletter offers a gilded toolbox of seasoned insights to fuel your development know-how and keep your weekend stories epic. So, buckle up and gear up for a journey through the latest .NET trails with the wisdom of a mechanic who's got that classic car purring.
Today's Articles
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Jasen's take on today's picks
GPT-OSS – A C# Guide with Ollama
Running GPT-OSS locally with Ollama is a practical look at private AI workflows in C# instead of just demos.
Azure Developer CLI (azd) - August 2025
The azd release notes matter if you're deploying to Azure regularly, because small CLI updates add up fast.
Exploring New LINQ Additions in C# 13: Index, CountBy, AggregateBy
The LINQ additions piece is a nice preview of C# 13 ergonomics that should make collection code cleaner.
Taming Generics, Interfaces & JSON in .NET — Meet JsonPolymorphic
JsonPolymorphic is a useful reminder that polymorphic JSON can be simpler now than the converter-heavy past.
Global Exception Handling in ASP.NET Core: From Throw to ProblemDetails
ProblemDetails-based exception handling is the kind of ASP.NET Core pattern that pays off immediately in production.
Your Guide to Saving with Azure Hybrid Benefit
Azure Hybrid Benefit coverage is worth a watch for teams trying to trim SQL and infrastructure spend.
️ The .NET Roadmap to Mastery: From Blazor Newbie to Full-Stack Powerhouse
The Blazor-to-full-stack roadmap is broad, but beginners may appreciate the structured overview of the platform.
The memory leak article correctly focuses on static event handlers, one of the easiest ways to keep objects alive too long.
Rate Limiting in ASP.NET Core — Protect Your APIs Like a Pro
Rate limiting in ASP.NET Core is essential reading if you expose public APIs or need basic abuse protection.
🔴 VS Code Live - Vibe-hack VS Code with Joyride and Copilot
The VS Code live session is more about workflow energy than .NET itself, but Copilot-driven editor tricks can still be useful.
.NET framework to .net core conversion automated
Automating .NET Framework to .NET Core conversion is ambitious, and upgrade planning still benefits from realistic tooling stories.
5 Advanced String Tricks That Will Instantly Level Up Your Code
The string tricks article aims at performance and clarity, though the value depends on whether the patterns fit your codebase.
Webhooks in .NET 9 is a timely guide for building service integrations with modern platform support.
Getting Started with C# and .NET: A Beginner’s Guide
The beginner guide is straightforward onboarding material for anyone just starting their C# and .NET journey.
GitHub Copilot vs ChatGPT: Which One Should Developers Use?
Copilot versus ChatGPT is a pragmatic comparison for developers deciding which AI tool belongs in their daily workflow.
Using CosmosDB in .NET for Scalable NoSQL Applications
Cosmos DB in .NET stays relevant for globally distributed apps that need scalable NoSQL without much ceremony.
🔐 What is Zero-Knowledge Proof?
Zero-knowledge proof is adjacent to .NET, but it’s a good security explainer for readers tracking modern cryptography.
Scheduling Messages with Brighter V10 and Quartz.NET
Brighter plus Quartz.NET is a solid scheduling write-up for message-driven systems that need timed work.
Life Tracker — A .NET App 3: NUnit testing
The NUnit testing entry is a nice nod to the testing side of app development, even if it's more personal than prescriptive.