@marioarce

Mario Alberto Arce

@marioarceSan José, Costa RicaJoined June 2026

AWS Cloud Architect | Serverless & Event-Driven Systems | Enterprise Modernization (Monolith → Microservices) | .NET & API Architecture

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Mario Alberto Arce's blogs

PowerCSharppowercsharp.hashnode.dev4 posts

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MAMario Alberto Arcepowercsharp.hashnode.dev8h ago · 7 min read

Why I Built a Feature Module Engine — and Why Feature Flag Libraries Weren't Enough

The Problem Three years ago, I was building a CORS policy module for a library that would be consumed by teams I didn't control. The infrastructure team wanted to control activation via environment va

MAMario Alberto Arcepowercsharp.hashnode.devJul 3 · 5 min read

100+ Extension Methods: When Breadth Is a Design Decision, Not a Mistake

The Problem Every enterprise C# codebase I have worked in has a StringHelper.cs. Or a DateTimeUtils.cs. Or an Extensions folder with 47 files and no discernible organization principle. The code works.

MAMario Alberto Arcepowercsharp.hashnode.devJun 24 · 6 min read

One Rule, 10+ Packages: How I Designed the PowerCSharp Package Topology

The Problem A NuGet package is a unit of deployment and versioning. When you publish a package, you make a promise: the public API in this package is stable until the major version changes. Every pack

MAMario Alberto Arcepowercsharp.hashnode.devJun 22 · 6 min read

Introducing PowerCSharp: An Ecosystem Built on 20 Years of C# Architecture

After spending over two decades writing C# code — from .NET Framework 1.1 all the way to .NET 8 — I’ve accumulated quite a collection of pet peeves. Why This Blog Exists I have been writing C# profes

Mario Alberto Arce

About

Available for

Mario Alberto Arce's blogs

Recently published

Why I Built a Feature Module Engine — and Why Feature Flag Libraries Weren't Enough

100+ Extension Methods: When Breadth Is a Design Decision, Not a Mistake

One Rule, 10+ Packages: How I Designed the PowerCSharp Package Topology

Introducing PowerCSharp: An Ecosystem Built on 20 Years of C# Architecture

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Mario Alberto Arce

About

Available for

Mario Alberto Arce's blogs

Recently published

Why I Built a Feature Module Engine — and Why Feature Flag Libraries Weren't Enough

100+ Extension Methods: When Breadth Is a Design Decision, Not a Mistake

One Rule, 10+ Packages: How I Designed the PowerCSharp Package Topology

Introducing PowerCSharp: An Ecosystem Built on 20 Years of C# Architecture