specifically it's a community variant of it. Grant still has his own version (https://github.com/3b1b/manim https://github.com/3b1b/manim) where he works indepe

specifically it's a community variant of it. Grant still has his own version (https://github.com/3b1b/manim https://github.com/3b1b/manim) where he works independently, and the community fork builds off that and e.g. adds and maintains things Grant might not care about.