Serverless.com project with Python and NodeJS Runtime

Hi,

I’m planning a new project which will consist of python and nodejs code.
Looking at the blog, this is basically not a problem at all:

Nevertheless, I wonder what about running offline. Theres a “serverless-offline” for python and nodejs, but i think i cannot mix those two, since they share the same command “serverless offline start”. Anyone has experience here?

Thanks,

Sebastian