The official Databricks Apps quickstart puts everything into a single app.py. Fine for a demo — painful once the app grows past ~500 lines.
Problems with the single-file pattern:
- Merge conflicts on every PR
- UI, logic, and SDK calls coupled → no unit tests
- Unreadable diffs in code review
- AI assistants (Cursor, Claude) re-parse the whole file every prompt → high token cost
Full article (detailed walkthrough): full article
GitHub template: GitHub Repo
Databricks Apps Tutorial: Scalable Streamlit modular Template for Production Databricks Apps is a convenient solution that lets you extend Databricks' capabilities. You can create a custom business ...
