shadow 4.17.4 = https://github.com/shadow-maint/shadow/releases/download/4.17.4/shadow-4.17.4.tar.xz ``` sh *** build *** ./configure --prefix=/pkg/gnu/shadow && make -j$(nproc) && make install ``` ``` sh *** config *** chmod u+s /pkg/gnu/bin/su echo '/bin/bash\n/bin/zsh' > /etc/shells ``` ``` cfg *** build deps *** linux-pam libbsd ```