@damianw345
Sorry but I couldn't find the edit comment option.
I've updated the script to always download latest version.
#!/bin/bash
latest_version_url=$(curl https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/latest -s -L -I -o /dev/null -w '%{url_effective}')
latest_version=${latest_version_url##*/}
zip_name="$latest_version-linux-x64.zip"
dir_to_unzip=/usr/lib/x86_64-linux-gnu/opera
cd /tmp
wget https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/download/$latest_version/$zip_name -q --show-progress
sudo unzip -o $zip_name -d $dir_to_unzip
rm $zip_name