diff --git a/dev-gap/tomlib/Manifest b/dev-gap/tomlib/Manifest
new file mode 100644
index 0000000000000..9df01fcf6f35f
--- /dev/null
+++ b/dev-gap/tomlib/Manifest
@@ -0,0 +1 @@
+DIST tomlib-1.2.9.tar.gz 53258295 BLAKE2B 67c569c0ac041ebbe2c0a1d47ada85685e01e5acfed7739d22e57f773c7c56d850bc7474c589ec9b50e78c6c2f94777252a0791c2fad0157998375863116b37d SHA512 01c1d451600c6d598a5400f9c7cb3cfce056907842a95ccbef09a149d10762068fd03931b5b0ed677ee2fdc52e4be9ac4e81bf17f2b3c104cb50c4987df30cbc
diff --git a/dev-gap/tomlib/metadata.xml b/dev-gap/tomlib/metadata.xml
new file mode 100644
index 0000000000000..9ed3999e9ec1d
--- /dev/null
+++ b/dev-gap/tomlib/metadata.xml
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>mjo@gentoo.org</email>
+  </maintainer>
+  <maintainer type="person">
+    <email>frp.bissey@gmail.com</email>
+    <name>François Bissey</name>
+  </maintainer>
+  <maintainer type="project" proxied="proxy">
+    <email>proxy-maint@gentoo.org</email>
+    <name>Proxy Maintainers</name>
+  </maintainer>
+  <maintainer type="project">
+    <email>sci-mathematics@gentoo.org</email>
+    <name>Gentoo Mathematics Project</name>
+  </maintainer>
+  <longdescription lang="en">
+    The concept of a table of marks was introduced by W. Burnside in his
+    1955 book Theory of Groups of Finite Order. Therefore a table of
+    marks is sometimes called a Burnside matrix.
+
+    The table of marks of a finite group G is a matrix whose rows and
+    columns are labelled by the conjugacy classes of subgroups of G and
+    where for two subgroups H and K the (H, K)-entry is the number of
+    fixed points of K in the transitive action of G on the cosets of H
+    in G. So the table of marks characterizes the set of all permutation
+    representations of G. Moreover, the table of marks gives a compact
+    description of the subgroup lattice of G, since from the numbers of
+    fixed points the numbers of conjugates of a subgroup K contained in
+    a subgroup H can be derived.
+
+    For small groups the table of marks of G can be constructed directly
+    in GAP by first computing the entire subgroup lattice of G. However,
+    for larger groups this method is unfeasible. The GAP Table of Marks
+    library provides access to several hundred tables of marks and their
+    maximal subgroups.
+  </longdescription>
+  <upstream>
+    <remote-id type="github">gap-packages/tomlib</remote-id>
+  </upstream>
+</pkgmetadata>
diff --git a/dev-gap/tomlib/tomlib-1.2.9.ebuild b/dev-gap/tomlib/tomlib-1.2.9.ebuild
new file mode 100644
index 0000000000000..f7a18f9624df3
--- /dev/null
+++ b/dev-gap/tomlib/tomlib-1.2.9.ebuild
@@ -0,0 +1,22 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit gap-pkg
+
+DESCRIPTION="The GAP library of Tables of Marks"
+SLOT="0"
+SRC_URI="https://github.com/gap-packages/${PN}/releases/download/v${PV}/${P}.tar.gz"
+
+LICENSE="GPL-2+"
+KEYWORDS="~amd64"
+
+RDEPEND="dev-gap/atlasrep"
+
+# The are "extra" docs and not the HTML produced by GAPDoc. The glob
+# gets expanded if we use a plain variable but not if we use a bash
+# array.
+HTML_DOCS="htm/*"
+
+GAP_PKG_EXTRA_INSTALL=( data )