How to debug the Flutter app with custom packages and the Python code at the same time?

[giohappy]

Question

I'm developing a custom package (based on flutter_map). As usual, the development requires frequent changes to the code, both on the Flutter and the Python side.
As far as I've seen so far, there isn't any ready solution to debug a Flet app on both sides of its code. What I've tried so far:

1. modify the build.py command to retain the generated Flutter project, since I don't see an existing option for that
2. modify the python code in place inside the app.zip file, but it didn't work well, and in any case every modification requires recreating the asset and the hash

It would be great to have the possibility to build and run a custom version of the Flet app that is published on the stores. It lets us run the Python code as a server app (is it using the FastAPI approach?), but it seems that its source code isn't published, right?

Any suggestion? Any plan to support this use case?

Code sample

No response

Error message

No response

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• I have searched for answers to my question both in the issues and in previous discussions.