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Horea Christian d269919305
dev-python/annexremote: pypi sources
2 days ago
.github/workflows .github/workflows: only run on push/PR 4 weeks ago
app-arch/libdeflate app-arch/libdeflate: version bump to 1.9 5 months ago
app-office/visidata app-office/visidata: add missing test dependency 3 months ago
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app-vim/vim-gromacs app-vim/vim-gromacs: remove RedundantLongDescription 1 year ago
dev-cpp dev-cpp/blitz: drop live 4 months ago
dev-java dev-java: cleanup old java packages 4 months ago
dev-lang dev-lang/terra: remove broken package without consumers 4 months ago
dev-libs dev-libs/optix: cleanup old 4 months ago
dev-ml/lacaml dev-ml/lacaml: add missing dep 1 year ago
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dev-vcs dev-vcs/dandi-cli: PEP517 fix suggested by mgorny 3 weeks ago
docs virtual/{{c,}blas,lapack{,e}}: replaced by counterparts in ::gentoo. 3 years ago
eclass eclass/numeric-int64-multibuild.eclass: fix @ECLASS variable 1 year ago
licenses licenses: drop unused licenses 4 months ago
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media-libs */*: virtual/jpeg deprecation 4 weeks ago
metadata layout.conf: ban EAPI 6 5 months ago
net-misc/cernbox-client net-misc/cernbox-client: Drop old. 4 months ago
profiles profiles/package.mask: mask jeuclid-core for removal 2 weeks ago
sci-astronomy/libthesky sci-astronomy/libthesky: relax dependency 4 months ago
sci-biology sci-biology/samri: dependency restriction 2 weeks ago
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sci-misc sci-misc/opennlp-maxent: remove old java package 4 months ago
sci-physics sci-physics/openmx: bump to patch release 4 months ago
sci-visualization sci-visualization/clip: fix invalid pre-inherit placement 4 months ago
scripts Drop repoman CI in favour of pkgcheck 4 weeks ago
sys-cluster/modules sys-cluster/lmod: lmod is now in ::gentoo 1 year ago
x11-libs/xview-bin x11-libs/xview-bin: drop UnusedInherits 5 months ago
x11-misc/envytools x11-misc/envytools: remove duplicate inherit of git-r3 1 year ago
.gitignore profiles: remove use.local.desc permanently 5 years ago *.md: update documentation: repoman --> pkgcheck and friends 4 weeks ago *.md: update documentation: repoman --> pkgcheck and friends 4 weeks ago

The Gentoo Science Project Repository

pkgcheck contributions welcome chat on libera

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


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 Libera IRC in #gentoo-science. Alternatively you can report bugs on the Gentoo Bugzilla.