# Using ipatool to decrypt, then insert tweak unzip YouTube.ipa cp mytweak.dylib Payload/YouTube.app/ install_name_tool -add_rpath "@executable_path/Frameworks" Payload/YouTube.app/YouTube codesign -f -s "iPhone Developer" Payload/YouTube.app zip -r YouTube-modded.ipa Payload
There is a dedicated subculture of "Legacy" collectors who enjoy seeing modern 4K-era content streaming on a device from 2012.