Visualisation of the Apache Brooklyn commit history - 10 Jun 2011 - 23 Jan 2016 (master) - (1080p 60fps)

gource -s .1 -a 1 ./ -1920x1080 --logo ./brooklyn_logo_817px_wide.png --hide filenames,bloom --bloom-multiplier .5 --bloom-intensity .4 --highlight-users --key -o - | ffmpeg -y -r 60 -f image2pipe -vcodec ppm -i - -vcodec libx264 -preset ultrafast -pix_fmt yuv420p -crf 1 -threads 0 -bf 0 brooklyn-incubator.mp4

The version of Gource currently installed by brew segfaults on El Capitan 10.11.3 so you may need to install from source:

brew install gource --HEAD