AI Came
AI Saw
AI Migrated
With Hope
Too much
Something
The Plan
- Migrate a core shared component from ROS
- Migrate components part of a core flow from ROS
ROS (Angular ecosystem)
Non-ROS (React ecosystem)
- Migrate the build tool
- Migrate an entire React app to Angular
The Toolkit
AI
- Github Copilot (Agent mode)
- Cursor
- Aider with both GPT4o and Claude 3.7-Sonnet
Use Case 1
Migrate the Map components
Use Case 2
Migrate the components from a core flow (life event)
Use Case 3
Migrate the build tool of a React app
Use Case 4
Migrate a React app to Angular
Lessons learned
- Github Copilot works great with small well-structured, more standardized components
- The bigger the component, the worse it's going to perform
- When generating code with AI, developers spend most of their time reviewing and fixing
- mostly fixing
- A good strategy for migrating big codebase applications is to first create unit tests for old components
- When migrating, the Copilot will pick up the unit test for context as well, leading to better accuracy
- We have to be very specific in our prompts when trying to achieve a certain behaviour
- Copilots seem to also tire when using them intensely, over two days, at a hackathon. Especially when everybody is using them.
Q & A
Thank you!
💅slay 💅
Yonder Hackathon 2025
By alexgrigi
