Also quick noob question on outputs/consumers, can a project written in typescript can consume outputs of a project written in python for instance ?

Yes - the

StackReference

feature in each language can reference outputs from another stack that can be deployed in any other language. Today this only works at the stack level - each stack has to be authored in a single language. We are exploring solutions to allow mixing at the component level as well for the future.

Ok cool. One use case I think of is writing core infra in python because we devops use python, and app infra in js/ts that is our software language and would be easier if we decide to let this to devs. Interesting stuff again, will definitely try it out.