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Gabriel Anhaia

Senior Software Engineer @ Monta · 10+ years in backend, distributed systems & AI agents · Creator of Hermes IDE (AI-native terminal) & Neural Playground · Author of 2 books · Open-source enthusiast

Location Berlin, Germany Joined Joined on  Personal website https://xgabriel.com github website

Work

Software Engineer and Book Author

Named Constructors in PHP: Why Order::place() Beats new Order(...)
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Named Constructors in PHP: Why Order::place() Beats new Order(...)

#php #ddd #architecture #design
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8 min read
The Outbox Pattern in PHP from Scratch (No Library, 80 Lines)
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The Outbox Pattern in PHP from Scratch (No Library, 80 Lines)

#php #eventdriven #postgres #architecture
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8 min read
Three Layers vs Four Layers: When the Application Layer Earns Its Keep
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Three Layers vs Four Layers: When the Application Layer Earns Its Keep

#php #architecture #cleancode #design
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8 min read
Schema Migrations vs Aggregate Evolution: Two Different Problems
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Schema Migrations vs Aggregate Evolution: Two Different Problems

#php #database #ddd #refactoring
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9 min read
Multi-Tenant Routing in Hexagonal PHP
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Multi-Tenant Routing in Hexagonal PHP

#php #multitenancy #architecture #database
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10 min read
Pagination: Does It Belong in the Domain or in the Adapter?
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Pagination: Does It Belong in the Domain or in the Adapter?

#php #architecture #database #hexagonal
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8 min read
ULID and UUID v7 in PHP: Modern IDs for Domain Entities
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ULID and UUID v7 in PHP: Modern IDs for Domain Entities

#php #ids #database #ddd
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9 min read
DTOs vs Value Objects: When to Use Which in PHP
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DTOs vs Value Objects: When to Use Which in PHP

#php #ddd #architecture #types
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9 min read
Authorization in Use Cases, Not Controllers
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Authorization in Use Cases, Not Controllers

#php #security #architecture #laravel
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8 min read
Where Input Validation Lives: Controllers, Use Cases, or Domain?
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Where Input Validation Lives: Controllers, Use Cases, or Domain?

#php #architecture #validation #ddd
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10 min read
Filament + Hexagonal: Building an Admin Panel Without Coupling Your Domain
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Filament + Hexagonal: Building an Admin Panel Without Coupling Your Domain

#php #laravel #filament #architecture
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8 min read
Symfony DependencyInjection for Hexagonal: Autowiring the Whole Domain
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Symfony DependencyInjection for Hexagonal: Autowiring the Whole Domain

#php #symfony #di #architecture
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8 min read
PHP 8.4 Property Hooks for Value Objects: Beyond readonly
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PHP 8.4 Property Hooks for Value Objects: Beyond readonly

#php #php84 #types #ddd
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9 min read
Enums as State Machines: Modeling Order Status the Right Way in PHP 8.3
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Enums as State Machines: Modeling Order Status the Right Way in PHP 8.3

#php #enums #ddd #architecture
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7 min read
Laravel Octane and Hexagonal: What Long-Lived Workers Actually Change
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Laravel Octane and Hexagonal: What Long-Lived Workers Actually Change

#php #laravel #octane #performance
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8 min read
Mutation Testing as Architecture Enforcement: Infection in 2026
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Mutation Testing as Architecture Enforcement: Infection in 2026

#php #testing #infection #architecture
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8 min read
Don't Mock What You Don't Own: The Stripe Adapter Pattern in PHP
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Don't Mock What You Don't Own: The Stripe Adapter Pattern in PHP

#php #testing #stripe #architecture
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10 min read
Property-Based Testing for Domain Rules in PHP
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Property-Based Testing for Domain Rules in PHP

#php #testing #ddd #architecture
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9 min read
Application Services vs Use Cases: The Actual Difference
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Application Services vs Use Cases: The Actual Difference

#php #architecture #ddd #design
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8 min read
Why "Manager" Classes Are a Code Smell (And What to Replace Them With)
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Why "Manager" Classes Are a Code Smell (And What to Replace Them With)

#php #architecture #cleancode #naming
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8 min read
Pessimistic vs Optimistic Locking in Hexagonal PHP
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Pessimistic vs Optimistic Locking in Hexagonal PHP

#php #database #concurrency #architecture
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9 min read
The Saga Pattern in PHP: Long-Running Workflows Without a Workflow Engine
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The Saga Pattern in PHP: Long-Running Workflows Without a Workflow Engine

#php #eventdriven #architecture #postgres
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8 min read
Idempotency Keys in PHP: Stop Charging Customers Twice
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Idempotency Keys in PHP: Stop Charging Customers Twice

#php #architecture #http #payments
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9 min read
Tell, Don't Ask: The Rule That Decides Where Your PHP Methods Live
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Tell, Don't Ask: The Rule That Decides Where Your PHP Methods Live

#php #architecture #oop #ddd
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9 min read
Aggregate Roots: Why Your Entity Needs a Private Constructor in PHP
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Aggregate Roots: Why Your Entity Needs a Private Constructor in PHP

#php #ddd #architecture #design
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8 min read
The Outer Ring: Why Your Framework Is Actually Replaceable
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The Outer Ring: Why Your Framework Is Actually Replaceable

#php #architecture #cleancode #beginners
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9 min read
Symfony Messenger as a Domain-Event Adapter (Without the Coupling)
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Symfony Messenger as a Domain-Event Adapter (Without the Coupling)

#php #symfony #messenger #eventdriven
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8 min read
CQRS in PHP: When Reads and Writes Stop Being the Same Thing
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CQRS in PHP: When Reads and Writes Stop Being the Same Thing

#php #cqrs #architecture #laravel
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9 min read
The Specification Pattern in PHP: Querying Without Leaking SQL
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The Specification Pattern in PHP: Querying Without Leaking SQL

#php #ddd #architecture #database
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9 min read
Stop Passing Eloquent Models to Blade
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Stop Passing Eloquent Models to Blade

#php #laravel #eloquent #blade
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7 min read
Aggregates in PHP: The Boundary Most Teams Get Wrong
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Aggregates in PHP: The Boundary Most Teams Get Wrong

#php #ddd #architecture #design
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9 min read
Domain Services in PHP: The Rare Class That Actually Belongs in Your Domain
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Domain Services in PHP: The Rare Class That Actually Belongs in Your Domain

#php #ddd #architecture #design
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8 min read
DBAL Without an ORM: When a 50-Line Mapper Beats Doctrine
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DBAL Without an ORM: When a 50-Line Mapper Beats Doctrine

#php #doctrine #database #architecture
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9 min read
Pest vs PHPUnit for Use-Case Tests: Which One Hurts Less
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Pest vs PHPUnit for Use-Case Tests: Which One Hurts Less

#php #testing #pest #phpunit
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9 min read
Composer Autoloading for Hexagonal PHP: A Namespace Plan That Holds
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Composer Autoloading for Hexagonal PHP: A Namespace Plan That Holds

#php #composer #architecture #laravel
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9 min read
PSR-7 Is the Right Shape for Your HTTP Adapter, Even in Laravel
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PSR-7 Is the Right Shape for Your HTTP Adapter, Even in Laravel

#php #laravel #architecture #hexagonal
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8 min read
Migrate Eloquent Models to Domain Entities Without a Big-Bang Rewrite
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Migrate Eloquent Models to Domain Entities Without a Big-Bang Rewrite

#php #laravel #eloquent #refactoring
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8 min read
The Anti-Corruption Layer: Integrating Legacy PHP Without Catching Its Diseases
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The Anti-Corruption Layer: Integrating Legacy PHP Without Catching Its Diseases

#php #ddd #architecture #refactoring
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9 min read
If Your Controller Is More Than 15 Lines, You Have a Use Case Hiding
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If Your Controller Is More Than 15 Lines, You Have a Use Case Hiding

#php #laravel #architecture #refactoring
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7 min read
Bounded Contexts in PHP: Why Your App Should Be 4 Apps in One Codebase
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Bounded Contexts in PHP: Why Your App Should Be 4 Apps in One Codebase

#php #ddd #architecture #design
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9 min read
The Complete Hexagonal Service in PHP: HTTP, CLI, Queue, DB, Tests
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The Complete Hexagonal Service in PHP: HTTP, CLI, Queue, DB, Tests

#php #architecture #hexagonal #backend
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10 min read
PHP 8.4 Asymmetric Visibility: The Feature That Finally Lets You Build Real Value Objects
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PHP 8.4 Asymmetric Visibility: The Feature That Finally Lets You Build Real Value Objects

#php #php84 #types #ddd
1
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10 min read
The Strangler Pattern in PHP: Shipping Two Architectures at Once for a Year
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The Strangler Pattern in PHP: Shipping Two Architectures at Once for a Year

#php #refactoring #architecture #laravel
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10 min read
Migrating a Legacy Laravel Service to Hexagonal, Incrementally
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Migrating a Legacy Laravel Service to Hexagonal, Incrementally

#php #laravel #refactoring #architecture
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12 min read
When Hexagonal Architecture Is Overkill
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When Hexagonal Architecture Is Overkill

#php #architecture #hottake #design
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11 min read
Observability Without Coupling: Logging, Tracing, and Metrics Through Ports
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Observability Without Coupling: Logging, Tracing, and Metrics Through Ports

#php #observability #architecture #opentelemetry
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11 min read
Result Types in PHP: Stop Throwing Exceptions for Business Errors
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Result Types in PHP: Stop Throwing Exceptions for Business Errors

#php #architecture #types #errors
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8 min read
Domain Events in PHP Without a Kafka Cluster
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Domain Events in PHP Without a Kafka Cluster

#php #eventdriven #architecture #database
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9 min read
Transactions Without Leaking the Database into Your Domain
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Transactions Without Leaking the Database into Your Domain

#php #architecture #doctrine #database
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11 min read
Testing Use Cases Without a Database (and Why Your Tests Are Slow)
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Testing Use Cases Without a Database (and Why Your Tests Are Slow)

#php #testing #architecture #phpunit
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10 min read
Doctrine 3 Behind a Port: The Pattern That Lets You Swap ORMs
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Doctrine 3 Behind a Port: The Pattern That Lets You Swap ORMs

#php #doctrine #architecture #database
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10 min read
One Use Case, Three Entry Points: HTTP, CLI, and Queue Workers Sharing the Same Code
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One Use Case, Three Entry Points: HTTP, CLI, and Queue Workers Sharing the Same Code

#php #architecture #laravel #queue
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8 min read
Value Objects in PHP 8.3: Stop Passing Strings for Money
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Value Objects in PHP 8.3: Stop Passing Strings for Money

#php #architecture #ddd #types
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9 min read
Anemic Domain, Fat Service: The PHP Antipattern Nobody Calls Out
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Anemic Domain, Fat Service: The PHP Antipattern Nobody Calls Out

#php #architecture #ddd #laravel
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9 min read
Why "Service" Is the Worst Word in Your PHP Codebase
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Why "Service" Is the Worst Word in Your PHP Codebase

#php #architecture #cleancode #ddd
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9 min read
The Dependency Rule: The One Architecture Rule That Replaces 50 Others
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The Dependency Rule: The One Architecture Rule That Replaces 50 Others

#php #architecture #laravel #design
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9 min read
Symfony Is Also an Adapter (Yes, Even With All Its Glue)
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Symfony Is Also an Adapter (Yes, Even With All Its Glue)

#php #symfony #architecture #hexagonal
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9 min read
Laravel as an Adapter: A 90-Minute Refactor That Survives Framework Upgrades
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Laravel as an Adapter: A 90-Minute Refactor That Survives Framework Upgrades

#php #laravel #architecture #refactoring
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11 min read
Hexagonal vs Clean: When to Lean Which Way
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Hexagonal vs Clean: When to Lean Which Way

#php #architecture #hexagonal #cleanarchitecture
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9 min read
Clean Architecture's Four Rings, Translated to PHP
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Clean Architecture's Four Rings, Translated to PHP

#php #architecture #cleancode #beginners
1
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9 min read
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