Kamil Gędaj - Full-Stack Developer https://validator.w3.org/feed/docs/rss2.html Builder Pattern: Stop Counting Commas Liskov Substitution Principle: When Inheritance Lies Factory Method: Stop Scattering new Across Your Business Logic Contact Articles Strategy Pattern: Stop Writing if-else Chains Portfolio Home Resume Single Responsibility Principle: One Class, One Job Open/Closed Principle: Add, Don’t Rewrite