index.html

#!/usr/bin/env bash

case "$OSTYPE" in
  darwin*)  re='mac_amd64.*\.tar\.gz$'; ;;
  linux*)   re='linux_amd64.*\.tar\.gz$'; ;;
  msys*)    re='windows_amd64.*\.zip$'; ;;
  *)        echo "unknown: $OSTYPE"; ;;
esac

rel=$(wget -qO- https://latest.fast.ai/latest/caddyserver/caddy | grep $re)

if [[ $name == "windows_amd64" ]]; then
  wget -qO- ${rel}
  unzip *.zip
else
  wget -qO- ${rel} | tar xz
fi