Migrating a Flask Blog from SQLite to MySQL: A Low-Risk Production Checklist
A practical, low-risk path for moving a Flask blog from SQLite to MySQL with backups, schema creation, data import, cutover, and rollback.
Category: Tech Practice
Current engineering topics across frontend platforms, AI applications, cloud native systems, backend data stores, mobile development, performance, and operations.
Hardening Flask Blog Admin Access: Split Roles, View Decorators, and an Nginx Safety Net
A practical access-control blueprint for a Flask blog: separate admin and author responsibilities, enforce permissions with decorators and query filters, and put Nginx in front as a second line of defense.
Reliable Android Image Uploads with Kotlin: WorkManager, Foreground Notifications, and HTTPS
A production-minded Android upload pipeline: use WorkManager for persistence, foreground notifications for long transfers, HTTPS and Network Security Config for transport safety, and server-side idempotency to prevent duplicate writes.
Nginx Static Asset Caching for Blogs: Faster Pages Without Breaking Updates
Static asset caching should separate HTML, images, CSS, and JavaScript so a blog becomes faster without trapping users on stale styles.
Reliable SQLite Backups for Blogs: Copying, Verification, and Restore Drills
SQLite is fine for small blogs, but backups must include the database, uploads, configuration, verification checks, and regular restore drills.
Flask Blog Log Troubleshooting: From 500 Errors to Slow Requests
A practical troubleshooting workflow for small Flask blogs: separate proxy failures, application errors, database issues, and slow requests before changing code.
How Large TypeScript Frontends Control Type Debt: Boundaries, DTOs, and Gradual Tightening
TypeScript projects become maintainable when teams separate API DTOs, domain models, and view state, then gradually reduce any at module boundaries.
RAG Applications Need More Than a Vector Database: Chunking, Retrieval, and Answer Boundaries
A useful RAG system depends on document structure, retrieval evaluation, reranking, source citations, permission rules, and clear answer boundaries.