NOTE: optimizt is not built into package.json either with scripts or dev-dependencies! This is because the target developer may not need image optimization, or they may be bringing their own tools to the table for this.
https://github.com/343dev/optimizt
npm install @343dev/optimizt --global
# Optimize a single file
optimizt path/to/picture.jpg
# Optimize all jpg images in current directory
find . -iname \*.jpg -exec optimizt {} +
# Optimize all jpg, webp, and png images in current directory
find . \( -iname \*.jpg -o -iname \*.webp -o -iname \*.png \) -exec optimizt {} +