[graemep]

More than hobby, you are correct. I should have said "completely unrelated to commercial activity"

That is still a problem: https://berthub.eu/articles/posts/eu-cra-what-does-it-mean-f...

> the mere fact that an open-source software product receives financial support by manufacturers or that manufacturers contribute to the development of such a product should not in itself determine that the activity is of commercial nature.

That just means that a business can donate to a non-profit project. Such a business would still need to not profit from the project in anyway. Why would a business help develop something it does not profit from?

> for the purpose of this Regulation, the development of products qualifying as free and open-source software by not-for-profit organisations should not be considered a commercial activity as long as the organisation is set up in a way that ensures that all earnings after cost are used to achieve not-for-profit objectives

So again, an organisation can, provided it no profit.

These are very narrow exemptions.