Immutability in Data Flows for Safer, Simpler Code
How Immutable Data Improves Reasoning, Safety, and Testability
Rico Fritzsche
Applying Functional Core and Imperative Shell in Practice
A Simple Rust Example for Testable Logic and Clear Boundaries
Simplify & Succeed: Replacing Layered Architectures with an Imperative Shell and Functional Core
Streamline Testing by Eliminating Mocks and Focusing on Pure Functions
Beyond the Hype: Event Modeling, Event Sourcing, and Real Choices
Understanding the Domain Before Adding Complex Storage Patterns
Slow Down, Understand the Domain, and Then Build
Why Becoming a Domain Expert Matters
Why Code is the Wrong Layer for Rate Limiting
A practical take on keeping it out of your service code.
Beyond the Hype: Rediscovering the Value of Relational Data Models
The Practical Benefits of Database Constraints in Production Systems
Cutting Through the Noise: A Reflection on the True Essentials of Software Development
Escaping the Hype: The Art of Staying Focused on Value
Scalability in High-Traffic Environments
Real-World Challenges in Location-Based Intelligence
My Journey to Simple, Lovable, Complete Products
Product Viability: Rethinking MVPs for Sustainable Success