Flask vs. Django. What does the community prefer as a RestAPI? Which do you think would get the most amount of contributors, if a FOSS project was to be made, based on one of them?

I dont know it for sure, i think both frameworks are quite populars and have a lot of contributors. I think u should take the best for ur project structure. 😁

Honestly, it also depends on the size of your project. Sometimes, if your project is uncomplicated, and you don't need a bunch of extra built-ins Flask can really make sense. But for larger projects, having the tried and tested boilerplate code can significantly reduce the time you spend on working on your projects.