git tag --format "%(creatordate:format:%s)|%(refname:strip=2)" | sort -n > .git/gource_releases.txt

curl -s https://gist.githubusercontent.com/tommeier/3720005/raw/8b390d47afceb137a87556466347bcd3a8b5050e/avatar.perl > fetchgravatar
perl ./fetchgravatar

gource -1920x1080 --hide 'mouse,progress,bloom' --user-image-dir .git/avatar -s 0.25 -a 2 -i 0 --max-file-lag 1 --no-vsync --highlight-users --highlight-colour FFFF00 --caption-size 50 --caption-file .git/gource_releases.txt --caption-colour 00FFFF -r 60 -o - . | ffmpeg -framerate 60 -i - -c:v libx265 -crf 20 -preset slow output.mkv