❯ tar -cf - . | tar -tvf - | md5sum
210e02c5f940c8b213419887ead8d317  -
❯ tar --transform='s/^\.\/\?[^\/]\+\///' -cvf - . | tar -tvf - | md5sum
e68ba90b52b8f135b0324b121c5c0b75  -
 ~/temp/tartest ❯