Working with Databricks Apps

[atikiwala]

I'm trying to use Databricks Apps to host a Streamlit app to serve some interactive applicaton. I face two limitations:
1. In environment for App I see it using certain python version, but how to update it to use any other version?

It is already set to different verson in my repo's poetry.lock 

I have also tried setting "runtime" variable in app.yaml

2. How to make available certain python modules to app which are available by default in the runtime?

For example I want use python module rapidfuzz within the app, but directly import of course do not work.

Thank you!