Python graphics engine open sourced at: github.com/3b1b/manim "Animation engine for explanatory math videos". But for some reason there is a community fork: github.com/ManimCommunity/manim/ "This repository is maintained by the Manim Community, and is not associated with Grant Sanderson or 3Blue1Brown in any way (though we are definitely indebted to him for providing his work to the world). If you want to study how Grant makes his videos, head over to his repository (3b1b/manim). This is a more frequently updated repository than that one, and is recommended if you want to use Manim for your own projects." what a mess.
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3Blue1Brown is a popular educational YouTube channel created by Grant Sanderson that focuses on mathematics. Known for its visually engaging content, the channel utilizes a unique computer graphics style to explain complex mathematical concepts in an intuitive and accessible manner. The name "3Blue1Brown" refers to the colors used in its visualizations—blue and brown. The channel features a variety of topics, including calculus, linear algebra, topology, and other branches of mathematics, often highlighting interesting problems and theories.