@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.dev6 posts

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MAMario Alberto Arcepowercsharp.hashnode.dev3d ago · 5 min read

The Features Framework

Problem A feature flag library answers one question: is this feature enabled? It doesn't answer the question that actually matters in a real application: what happens to dependency injection when the

MAMario Alberto Arcepowercsharp.hashnode.dev5d ago · 7 min read

Foundation: Core, Extensions, Utilities, Helpers, Compatibility

Problem For most of twenty years across .NET Framework 1.1 through .NET 8, I wrote the same handful of things in every codebase: a null check before a string operation, a DayOfWeek comparison to detec

MAMario Alberto Arcepowercsharp.hashnode.devJul 14 · 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

Mario Alberto Arce

About

Available for

Mario Alberto Arce's blogs

Recently published

The Features Framework

Foundation: Core, Extensions, Utilities, Helpers, Compatibility

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

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Mario Alberto Arce

About

Available for

Mario Alberto Arce's blogs

Recently published

The Features Framework

Foundation: Core, Extensions, Utilities, Helpers, Compatibility

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