From the directory where you've cloned eos from GitHub:
gource --hide dirnames,mouse --title EOSIO --seconds-per-day 0.5 --max-file-lag 0.1 -1280x720 -o gource.ppm
ffmpeg -y -r 60 -f image2pipe -vcodec ppm -i gource.ppm -vcodec libx264 -preset medium -pix_fmt yuv420p -crf 1 -threads 0 -bf 0 gource.mp4