16 · Flutter / Dart
A small vehicle log from UI to database
Connect a form, domain service and real local persistence into a verified workflow.
54 Tutorials · DE / EN
Tutorials · Large
Start with no prior knowledge. Small examples explain the language. Medium guides connect building blocks. Large tutorials walk through complete project workflows.
Flutter / Dart
Large
17 · Flutter / Dart
Restore encrypted backups safely
Derive a key, verify authenticity and validate all data before import.
18 · Flutter / Dart
Scanning and OCR: suggestion, confirmation and persistence
Build a testable capture workflow and separate recognised text from confirmed data.
React / TypeScript
Large
16 · React / TypeScript
A small offline house log with React Native
Connect native input, a service and a SQLite repository replaceable between Android and tests.
17 · React / TypeScript
Persistent optimistic UI, replay and conflicts
Persist intent before sending and prevent duplicate effects when a response is lost.
18 · React / TypeScript
Shared editing with WebSockets and PostgreSQL
Understand ordered operations, reconnection and a durable operation log’s role.
Java
Large
16 · Java
Offline PDF workflow with JavaFX and SQLite
Follow template, mapping, preview, background jobs and local project persistence through a real desktop app.
17 · Java
Spring Boot batch workflow with uploads and Docker
Follow a stored upload through configuration, processing, download and cleanup.
18 · Java
Idempotency, outbox and reliable retries
Recognise duplicate requests and connect a database commit to later event delivery.