DocumentIO — Building a Unified API for 7 Document Formats in C#
DocumentIO — Building a Unified API for 7 Document Formats in C This is part of my series on building the VNML Agent Framework — a 100% local agenti…
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Composition Root in Node.js: Dependency Injection Without a DI Framework
Introduction: The Quest for Clean Architecture in Node.js When building backend applications in Node.js, managing dependencies between services, dat…
Tired of "new" Everywhere? Learn Factory Method with Laravel
1. Hook & Problem Statement You're building a Laravel application. You need to create a payment processor. So you write: $processor = new Stripe…
Stop Writing Massive if-else Blocks: Master the Strategy Pattern in PHP & Laravel
1. Hook & Problem Statement You're a Laravel developer. You need to build a shipping cost calculator. You start simple. if ($country === 'USA')…
A Scalable ML Framework with Monadic Design
Originally published on wisl.dev . In the world of machine learning, going from research to production is often a painful, time-consuming process. A…
Laravel & Design Patterns — Practice Series: Builder
I was tired of seeing how many articles repeat, again and again, basic examples of using design patterns in development; examples based on shape fig…
MCP Design Patterns: 7 Proven Patterns for Building Scalable AI Systems in Java
MCP Design Patterns: Building Scalable AI-Integrated Systems in Java A comprehensive guide to seven proven architectural patterns for Model Context…
Mastering the Adapter Pattern in Java: Bridging Modern Architectures and Legacy Systems
1. Fundamental Base: The Problem and the Theory 1.1 Introduction The Adapter Pattern (also widely known by its alias, Wrapper ) belongs to the Struc…
The Criteria pattern in NestJS: what a client may ask for is a file, not a signature
The Criteria pattern in NestJS One single way to filter, sort and paginate any list. Five parameters and a find() The example running through this a…
The Boundary Independence Principle (BIP)
The Boundary Independence Principle (BIP) I've been writing about the SOLID principles for over a decade. I built InversifyJS because of them, I wro…
Design Patterns: Reusable Solutions to Recurring Problems
Design Patterns: Reusable Solutions to Recurring Problems A practical guide to classic design patterns in C#/.NET — Factory, Singleton, Repository,…
Full practical guide on creating production-grade webhook receivers
Throughout my career I have designed and implement tens of webhook handlers from Payments systems and delivery trackers to chat and real time commun…
Prototype & Factory Method Design Patterns in Java - ClauseGuard
Introduction When ClauseGuard processes an uploaded contract, two problems appear immediately at scale. First, it needs to pick the right document p…
Why Your LLM Calls Need a Circuit Breaker: A Lesson from Last Party 🔌
Carnival time has begun. 🎉 We are organizing a house party, and if you are in and around Bangalore, you are invited. Just one condition: Don't be la…
Important Design Patterns in a Nutshell
When building complex software systems, writing code that simply "works" is not enough. As systems scale and requirements evolve, poorly structured…
Never Create an Invalid Object Again — The Builder Pattern
A real story from building a manuscript submission system at a scientific publishing company. We were building a system at a Publishing Company that…
Making ServiceLoader usable: a provider factory
I keep coming back to java.util.ServiceLoader . I have used it to put a JSON layer behind a contract, so the core code carries no direct dependency…
Environments Are Not Features
I wanted a sandbox. Not the decorative kind. Not the one where production data wears a fake name tag and hopes nobody notices. A real sandbox. One w…
Builder Design Pattern - Simplified
A real story from building a manuscript submission system at a scientific publishing company. We were building a system at a Publishing Company that…
AI Added Caching to Your Code — And Quietly Polluted Your Business Logic
Originally published at recca0120.github.io Ask AI to add caching to your code, and it will. The result looks clean — cache logic extracted into a s…
Introducing the ArchUnit Checker for the Clprolf Framework
One of the most interesting aspects of architectural frameworks is not the rules themselves, but the ability to verify that those rules are actually…
Benevolent Viruses — A Design Pattern for Ethical AI
Last month I ran an outreach campaign. I emailed 25 people — researchers, advocates, technologists — the kind of humans who think about how AI shoul…
Language-Agnostic Code Generation: The Driver Plugin Model
TestSmith generates test scaffolds for five languages: Go, Python, TypeScript, Java, and C#. Each language has its own project structure conventions…
Swift Protocol Magic II: Designing a Reusable Location Tracking System
How to stop rewriting CLLocationManager boilerplate in every screen — and design something your future self will actually thank you for.* If you've…
Hexagonal Architecture is Not a Layered Architecture: Topology, Safety, and When to Walk Away
Most introductory articles draw it as an onion Every article about Hexagonal Architecture ends up with the same diagram: three concentric circles. D…