Visualizations for some existing projects:

https://github.com/alpinelinux - https://www.youtube.com/watch?v=1WvNjtnCcPs

https://github.com/elixirschool/elixirschool - https://youtu.be/twpR-opLrZU

https://github.com/docker - https://www.youtube.com/watch?v=TdZixlvnCx0