FreeBSD ports and pkg allow you to set the installation base, with $LOCALBASE and $PREFIX (I guess other BSDs do too). Also AFAIK Guix. And BSD systems use /e

FreeBSD ports and pkg allow you to set the installation base, with $LOCALBASE and $PREFIX (I guess other BSDs do too). Also AFAIK Guix. And BSD systems use /etc and /bin and /usr/bin for OS stuff, and /usr/local for packages. Even the config files go to /usr/local/bin/etc (NetBSD same, but in /usr/pkg).