app-misc/tmux
app-shells/bash-completion[eselect
      (+)
]
app-shells/zsh[unicode
      (+)
]
app-text/tree
dev-debug/gdb
dev-debug/strace
dev-util/trace-cmd
dev-vcs/git[gpg
      (+)
]
sys-apps/busybox
sys-block/parted
sys-fs/dfc
sys-fs/dosfstools
sys-process/htop
sys-process/lsof

!prefix?
      ( app-admin/rsyslog app-admin/sysstat sys-fs/mdadm sys-process/audit sys-process/cronie crypt?
            ( sys-fs/cryptsetup sys-fs/lvm2 grub?
                  ( sys-boot/grub[device-mapper
                        (+)
                  ] )
             )
       grub?
            ( sys-boot/grub[mount
                  (+)
            ] )
       network?
            ( net-fs/nfs-utils net-ftp/lftp )
       )

archive?
      ( app-arch/bzip2 app-arch/dpkg app-arch/gzip app-arch/libarchive app-arch/lz4 app-arch/p7zip app-arch/rpm app-arch/tar app-arch/unrar app-arch/unzip app-arch/zip )

emacs?
      ( app-admin/emacs-updater app-editors/emacs gentoo?
            ( app-emacs/ebuild-mode app-emacs/nxml-gentoo-schemas )
       )

gentoo?
      ( app-doc/eclass-manpages app-eselect/eselect-package-manager app-eselect/eselect-repository app-eselect/eselect-timezone app-eselect/eselect-vi app-portage/eix app-portage/elogv app-portage/elsw app-portage/gentoolkit app-portage/portage-utils app-portage/smart-live-rebuild dev-util/pkgcheck dev-util/pkgdev sys-devel/crossdev hardware?
            ( app-portage/cpuid2cpuflags app-admin/eclean-kernel sys-kernel/genkernel )
       )

hardware?
      ( sys-apps/hwloc sys-apps/i2c-tools sys-apps/lm-sensors sys-apps/lshw sys-apps/pciutils sys-apps/smartmontools sys-apps/usbutils sys-fs/sysfsutils sys-kernel/linux-firmware sys-power/powertop sys-process/htop[lm-sensors
            (+)
      ] network?
            ( sys-apps/ethtool )
       )

network?
      ( net-analyzer/arp-scan net-analyzer/iftop net-analyzer/iptraf-ng net-analyzer/mtr net-analyzer/nethogs net-analyzer/nmap net-analyzer/openbsd-netcat net-analyzer/tcpdump net-analyzer/tcptraceroute net-analyzer/traceroute net-dns/bind-tools net-fs/sshfs net-misc/curl net-misc/iperf net-misc/iputils net-misc/mosh net-misc/ntp net-misc/socat net-misc/whois )