AI Coding9 min
AI Wrote the Code. Who Is Responsible When It Breaks?
AI coding assistants have changed the way software is written.
Software Engineer · Backend & Databases
Practical software engineering from real-world development.
I write about backend engineering, databases, software architecture and performance — the problems I actually ran into while building and operating systems, how I diagnosed them, and what the fix cost.
Featured
- 01 · PythonPython 3.15: Explicit Lazy Imports Faster Startup Without Messy ImportsPython 3.15: Explicit Lazy Imports Faster Startup Without Messy ImportsSep 28, 2026 · 4 min read
- 02 · Django MigrationHow Django Migrations Actually Work: From makemigrations to migrateA deep dive into how Django migrations really work how makemigrations detects model changes, how the migration graph and autodetector operate, how migrate turns operations into SQL via the SchemaEditoSep 15, 2026 · 16 min read
- 03 · Django MigrationHow to Safely Rename a Django Model or Database FieldA practical, step-by-step guide to renaming Django models and fields without losing data or breaking production — covering RenameModel, RenameField, ForeignKeys, and zero-downtime strategies.Sep 15, 2026 · 12 min read
Latest
All articles →Django21 min
Django Query Optimization: How to Make Your API Faster
Your Django code may look fast, while your database is doing hundreds of unnecessary queries. Learn how to find the real bottlenecks and make your Django APIs faster with practical query optimization.
Django9 min
How to Clean Up Django Migration Files Before Production
Learn how to safely clean and squash Django migration files before production, with practical examples and a beginner-friendly step-by-step workflow.
Topics
All categories →About Rong
Backend-leaning software engineer working with Python/Django, PostgreSQL, Redis and Next.js. I write about the problems I actually hit while building and operating systems.
Read more about this site →