- React Native – Styling and a Design System
Styles are JavaScript objects, not CSS. No cascade, no `var()`, no `:hover` — so a design system stops being a nicety and becomes the only way to stay consistent. `StyleSheet.create`, style arrays and how they merge, `Pressable`'s function-style prop for pressed states, and the platform split that makes shadows work on both iOS and Android instead of only one.
- Spring Boot – Beans, Scopes and Lifecycle
What a bean is, the difference between @Component and @Bean and when you need the second one, singleton versus prototype scope, the callbacks that run as a bean is created and destroyed, and why @Primary and @Qualifier exist the moment two beans satisfy the same type.
- Java – Get Started
This is the first post in a 29-part Java track. It gets you from nothing installed to a program you wrote and ran, tells you which Java version everything here assumes, and then hands you the map of the other 28 posts. You do not need any programming experience. You do need about twenty minutes and…
- Angular – Inputs, Outputs and Two-Way Binding
How data goes down and events come back up. The signal-based `input()`, `output()` and `model()` functions that replaced the `@Input` and `@Output` decorators, required versus optional inputs, input transforms, and how `model()` gives you `[(value)]` on your own component for free.
- Docker – Install It and Run Your First Container
Docker Desktop or Docker Engine, and how to tell which one you have. Then the six commands you will use every day — `run`, `ps`, `logs`, `exec`, `stop`, `rm` — what each flag in `docker run -d -p 8080:80 nginx` is doing, and why your container exited the instant it started.