Dear all, I have prepared an upload for the package uc-echo, of which autopkgtest was failing on arm64 due to a (by default unsigned) char type being used to store negative integer values. I will forward this fix to upstream. The package is in its Salsa repository [1]. Thanks in advance for the review when time permits, Best regards, Pierre [1] https://salsa.debian.org/med-team/uc-echo