See index.md for actual page source, this URL for the rendered page.
Rough instructions to render a somewhat-small GIF from iPhone video:
$ ffmpeg -i IMG_9280.MOV -ss 00:00:10 -to 00:00:13.6 IMG_9280.trimmed.mov
$ ffmpeg -i IMG_9280.trimmed.mov -vf "fps=10,scale=240:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" -loop 0 IMG_9280.trimmed.gif
$ convert IMG_9280.trimmed.gif -fuzz 10% -layers Optimize IMG_9280.slimmed.gif
$ ffmpeg -i IMG_5450.mov -ss 00:00:12 -to 00:00:17 IMG_5450.trimmed.mov
$ ...Add -flop to convert to mirror about the vertical.
$ bundle install
$ make