✅ Learn how to build robust and scalable software architecture: https://arjan.codes/checklist.

In this video, I show you how to use uv workspaces to manage multiple Python apps—like a CLI tool and a FastAPI app—with shared dependencies and shared logic. You’ll learn how to structure a real-world project that fetches and summarizes headlines using OpenAI, while avoiding duplicated lockfiles, conflicting environments, and messy imports.

🔥 GitHub Repository: https://git.arjan.codes/2025/workspaces.

🎓 ArjanCodes Courses: https://www.arjancodes.com/courses.

💬 Join my Discord server: https://discord.arjan.codes.

⌨️ Keyboard I’m using: https://amzn.to/49YM97v.

🔖 Chapters:
0:00 Intro
0:48 CLI and Fastapi App Without Any Workspace
3:27 Introduce the Global pyproject.toml
7:32 Extract Shared Logic to a Local Package
13:04 Adding Another Package
15:41 Extensibility
16:20 When Should You Use Workspaces?
17:58 Final Thoughts

#arjancodes #softwaredesign #python

The Best Way to Share Code Between Python Apps