To me this looks somewhat surprising that in Debian buster a package depends on 2 versions of a library: # apt-cache depends texlive-binaries |grep lua Depends: libtexlua52 Depends: libtexlua52 Depends: libtexlua53 Depends: libtexlua53 Depends: libtexluajit2 Depends: libtexluajit2 Breaks: <luatex> Replaces: <luatex> Is that really intended that it depends on both, libtexlua52 and libtexlua53? Steve