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Matthias Maier c733974b6d
sci-mathematics/dsfmt: remove package - moved to ::gentoo
5 days ago
.github/workflows .github/workflows: always use the latest version of repoman 2 weeks ago
app-arch/libdeflate app-arch/libdeflate: version bump to 1.7 1 month ago
app-office/visidata app-offic/visidata: use distutils_enable_tests 2 months ago
app-text app-text/zotero-bin: remove double PV 1 month ago
app-vim/vim-gromacs app-vim/vim-gromacs: remove RedundantLongDescription 1 month ago
dev-cpp dev-cpp/castxml: version bump 0.4.3 1 month ago
dev-java dev-java/*: clean up 3 weeks ago
dev-lang dev-lang/tk: import 8.5, removed from ::gentoo 2 weeks ago
dev-libs dev-libs/half: add version 1.12.0 1 month ago
dev-ml/lacaml dev-ml/lacaml: fix RedundantLongDescription, make it longer 2 months ago
dev-perl dev-perl/Bio-EnsEMBL: use perl_domodule 4 weeks ago
dev-python dev-python/param: use https 4 weeks ago
dev-tcltk/togl dev-tcltk/togl: EAPI bump 1 month ago
dev-util dev-util/rocm-clang-ocl: add 4.1.0 1 week ago
docs virtual/{{c,}blas,lapack{,e}}: replaced by counterparts in ::gentoo. 2 years ago
eclass eclass/numeric-int64-multibuild.eclass: fix @ECLASS variable 2 months ago
licenses licenses: clean up unused licenses 1 month ago
media-gfx/brlcad media-gfx/brlcad: add missing slash 3 months ago
media-libs media-libs/libgfx: EAPI bump 1 month ago
metadata metadata/layout.conf: ban EAPI 5 3 weeks ago
net-misc/cernbox-client net-misc/cernbox-client: Drop old version. 2 months ago
profiles sci-biology/trowel: remove masked package 3 weeks ago
sci-astronomy sci-astronomy/wcslib: landed on to ::gentoo. 5 months ago
sci-biology sci-biology/abyss: version bump 2 weeks ago
sci-chemistry sci-chemistry/hydronmr: remove masked package 4 weeks ago
sci-electronics/minipro sci-electronics/tnt: drop dead package 7 months ago
sci-libs sci-libs/pfft: fix MultipleKeywordsLines 3 weeks ago
sci-mathematics sci-mathematics/dsfmt: remove package - moved to ::gentoo 5 days ago
sci-misc sci-misc/opennlp-maxent: remove RedundantLongDescription 1 month ago
sci-physics sci-physics/genfit: fix MultipleKeywordsLines 3 weeks ago
sci-visualization sci-visualization/mricrogl: drop old 3 weeks ago
scripts .github/workflows: always use the latest version of repoman 2 weeks ago
sys-apps/ndctl sys-apps/ndctl: drop old version 4 months ago
sys-cluster/modules sys-cluster/lmod: lmod is now in ::gentoo 2 months ago
sys-kernel/dkms sys-kernel/dkms: dynamic kernel module support 4 months ago
virtual/scalapack virtual/blacs: remove obsolete virtual 3 months ago
x11-libs x110libs/tr: remove pack, upstream has dissapeared 3 months ago
x11-misc/envytools x11-misc/envytools: remove duplicate inherit of git-r3 2 months ago
.gitignore profiles: remove use.local.desc permanently 4 years ago update accepted EAPIs 3 weeks ago add note on eselect-repository 3 weeks ago

The Gentoo Science Project Repository

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This is an official mirror of the Gentoo Science ebuild repository, containing numerous scientific software packages.

See Project:Science for more information on the project.


  1. Installation
  1. Usage
  2. Contributing


Eselect-repository install

The easiest way to enable the overlay is to:

emerge --noreplace eselect-repository && eselect repository enable science && emerge --sync

and emerge the package as usual.

Manual Install

As per the current Portage specifications, ebuild repositories (a.k.a. overlays) can be managed via file collections under /etc/portage/repos.conf/, via the new plug-in sync system.

To enable the overlay without the need for additional software, you first need to have git installed:

emerge --ask --verbose dev-vcs/git

Then you need to add the science repository configuration by downloading the science.conf file:

wget \
	-O /etc/portage/repos.conf/science

Manual Uninstall

To uninstall the overlay, simply run:

rm /etc/portage/repos.conf/science
rm /var/db/repos/science -rf

Layman Install

You can also install the overlay via the layman overlay manager.

emerge --ask --verbose app-portage/layman
layman --add science

Layman Uninstall

To delete the overlay, run:

layman --delete science

Using Packages from ::science

To start using the overlay you now only need to get the newest files, via:

emerge --sync science

To be able to install ::science packages you need to make sure that you are accepting the ~${ARCH} keyword for your respective architecture. This may already be the case globally on your system, and you can check whether this is the case by running:

grep "~$(portageq envvar ARCH)" /etc/portage/make.conf

If the above returns empty, you will need to instruct Portage to accept ~${ARCH} packages.

This can be done for ::science specifically:

mkdir -p /etc/portage/package.accept_keywords
printf '*/*::science ~%s' "$(portageq envvar ARCH)" >> /etc/portage/package.accept_keywords/science

If the above fails with mkdir: cannot create directory ‘/etc/portage/package.accept_keywords’: File exists this means you are using a file and not a directory, and you can instead run:

printf '*/*::science ~%s' "$(portageq envvar ARCH)" >> /etc/portage/package.accept_keywords

Alternatively, and only if you know what you are doing, you can accept ~${ARCH} packages globally:

printf 'ACCEPT_KEYWORDS="~%s"' "$(portageq envvar ARCH)" >> /etc/portage/make.conf

The downside of this approach is potentially higher instability, the advantage is that often ::science packages require ~${ARCH} packages from ::gentoo as well.


If you fork, we will merge!
We welcome new contributors and are happy to include new packages.

Areas to contribute

find . -type f -name "*.ebuild" ! \( -wholename "*.git*" -o -wholename "*profile*" -o -wholename "*metadata*" \) | while read ff; do grep -lRE "EAPI.*6" /dev/null $ff; done


For a brief introduction please see our contributing guide. Further helpful resources are:

Additionally, please make sure to add the Science Project as an additional maintainer to any new packages you submit. For an example, take a look at the metadata for the Numba package - dev-python/numba/metadata.xml


You can ask for help on Freenode IRC in #gentoo-science. Alternatively you can report bugs on the GitHub issues page.