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📄 Backend Developer Roadmap PDF
High-res printable roadmap diagram covering Core Java 21, Spring Boot 3, PostgreSQL, Docker, K8s & System Design.
🍃 Spring Boot 3 & Security Cheatsheet
Quick reference card for Spring Security 6, Data JPA `@Entity` relationships, JWT rotation, and Kafka annotations.
🅰️ Angular 19 Signals & RxJS Cheatsheet
Signal primitives (`signal`, `computed`, `effect`), RxJS interop (`toSignal`, `toObservable`), and Zoneless detection.