In Django development, while SQLite3 is often used for databases and static/media files are stored locally during development, in production especially on platforms like Heroku - you need to use more robust solutions. Heroku’s dynos are lightweight virtual containers that don’t retain files across redeployments, meaning SQLite3 data, static files, and user-uploaded media would be erased. This is why using third-party cloud services like RDS PostgreSQL for databases and AWS S3 for static/media storage is necessary. Additionally, Django uses Heroku for its rapid deployment, automatic GitHub integration, and built-in SSL support, making it ideal for both simple and complex applications.
"Dynos and Persistence."March 31, 2025