Before I get trouble, I better ask:

At the moment I am using the free Pi-version of Mathematica.

I've read that the Desktop-home-version (for pc) for 300€ "may NOT be used for commercial, non-profit....use".

I want to create non-commercial videos for youtube with some visualisations made with Mathematica...am I right that this is NOT allowed with the home-desktop-version? Do I really need a 3200€-version for creating a nonprofit yt-video with it?!

What about the free Pi-version -

am I allowed to create a non-profit yt-vid with it? Can't find such a text for it in the license...

Furthermore I play around at the moment with code-snippets from the "intothecontinuum"-blog, what about these in view of copyrights? Are there any copyrights on these mathematical code-snippets/animations? (for sure it is not my intention to 'steal' the creators ideas and say that I've made them on my own - but are there any copyrights on mathematical visualisations?)

Many thanks for a small explanation.