Packages with the extras use flag

app-admin / conky : An advanced, highly configurable system monitor for X

  • Enable syntax highlighting for app-editors/nanoand app-editors/vim

app-arch / cabextract : Extracts files from Microsoft cabinet archive files

  • Install experimental extra tools: wince_info and wince_rename for examining and processing Windows CE installation cabinet header files; cabinfo for examining the structure of a cab file.

app-emulation / vkd3d-proton : Fork of VKD3D, development branches for Proton's Direct3D 12 implementation

  • Install extra tools and demos in /usr/lib/vkd3d-proton

dev-lang / lazarus : feature rich visual programming environment emulating Delphi

  • Build a lot of extra packages, including lhelp chm viewer program.

dev-python / py-amqp : Low-level AMQP client for Python (fork of amqplib)

  • Install extra tools to generate initial Python mod from an AMQP XML file

dev-vcs / subversion : Advanced version control system

  • Install extra scripts (examples, tools, hooks)

games-board / pasang-emas : Traditional game of Brunei

  • Install some extra themes

gnome-base / gnome : Meta package for GNOME, merge this package to install

  • Install additional GNOME applications

mate-base / mate : Meta ebuild for MATE, a traditional desktop environment

  • Install additional MATE Desktop applications that are recommended for extended usage of the MATE Desktop as upstream sees it; for example, this installs MATE Desktop's office related applications. Disable this if you plan to use your own non-MATE Desktop alternatives or a custom mixture of MATE and non-MATE packages.

media-libs / libavif : Library for encoding and decoding .avif files

  • Build extra apps (avifenc, avifdec) and test files

media-sound / gmusicbrowser : An open-source jukebox for large collections of mp3/ogg/flac files

  • Install some extra deps for plugins (ex. Titlebar)

net-firewall / fwknop : Single Packet Authorization and Port Knocking application

  • Install utility scripts and AppArmor policy for fwknopd

net-im / psi : Qt XMPP client

  • Enable Psi+ patchset

net-im / psimedia : Psi/Psi+ plugin for voice/video calls

  • Enable Psi+ mode (required when built for Psi+)

sci-chemistry / votca-csg : Votca coarse-graining engine

  • Pull in extra applications from sci-chemistry/votca-csgapps

sci-mathematics / gretl : Regression, econometrics and time-series library

  • Build and install add-ons bundled with gretl

sci-mathematics / normaliz : Tool for computations in affine monoids and more

  • Install Macaulay2 and sci-mathematics/singularpackages as shipped by upstream

sci-physics / bullet : Continuous Collision Detection and Physics Library

  • Build the extras

www-apps / ikiwiki : A wiki compiler

  • Installs additional modules used by ikiwiki plugins

x11-terms / terminology : Feature rich terminal emulator using the Enlightenment Foundation Libraries

  • Install additional testing tools