Record iOS simulator & convert to gif

example.sh

# Record Simulator screen - CTRL+C to finish
xcrun simctl io booted recordVideo appVideo.mov

# Optionally, convert to gif to attach to a GitHub PR:

# install dependencies
brew install ffmpeg -- --with-fdk-aac --with-ffplay --with-freetype --with-libass --with-libquvi --with-libvorbis --with-libvpx --with-opus --with-x265
brew install imagemagick

# convert .mov to a series of PNGs
mkdir output
ffmpeg -i appVideo.mov -vf scale=320:-1 -r 10 output/ffout%3d.png

# stitch PNGs together into a gif, with a pause between loops
convert -delay 8 output/ffout*.png -delay 500 output/ffout001.png -loop 0 output/animation.gif

# or with no pause
convert -delay 8 -loop 0 output/ffout*.png output/appVideo.gif

# or with looping disabled
convert -delay 8 -loop 1 output/ffout*.png output/appVideo.gif

Credit goes to https://gist.github.com/tskaggs/6394639 & https://timourrashed.com/fix-dyld-library-loaded-usrlocaloptx265liblibx26595dylib-running-ffmpeg/