diff --git a/app-misc/mnemosyne/Manifest b/app-misc/mnemosyne/Manifest
new file mode 100644
index 000000000..0fe412a04
--- /dev/null
+++ b/app-misc/mnemosyne/Manifest
@@ -0,0 +1 @@
+DIST mnemosyne-2.9.tar.gz 16301782 BLAKE2B 4f0045f047e8b0550bb47d4c1abb89df40225b3d1b244c15dca21c8802b6b7345e3fae0224d6dcd2d7426ef50a0c66688a2c90af4cbc52775de3d4064bb5ddf1 SHA512 f1f36cba38e30de7d15f2761999357db07bd2a3231788398d5633a3b8f2efed8b5bb27b3ce0335ff468eb1bde4928e2b3e34aa312e449c8610b202a487ef8b83
diff --git a/app-misc/mnemosyne/metadata.xml b/app-misc/mnemosyne/metadata.xml
new file mode 100644
index 000000000..261152145
--- /dev/null
+++ b/app-misc/mnemosyne/metadata.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>support@calculate.ru</email>
+		<name>Mir Calculate</name>
+		<description>Calculate Overlay</description>
+	</maintainer>
+	<longdescription lang="en">Efficient learning tool with powerful digital flash-cards.</longdescription>
+	<upstream>
+		<remote-id type="github">mnemosyne-proj/mnemosyne</remote-id>
+		<changelog>https://github.com/mnemosyne-proj/mnemosyne/blob/master/ChangeLog</changelog>
+		<bugs-to>https://github.com/mnemosyne-proj/mnemosyne/issues</bugs-to>
+	</upstream>
+</pkgmetadata>
diff --git a/app-misc/mnemosyne/mnemosyne-2.9.ebuild b/app-misc/mnemosyne/mnemosyne-2.9.ebuild
new file mode 100644
index 000000000..581b2eda2
--- /dev/null
+++ b/app-misc/mnemosyne/mnemosyne-2.9.ebuild
@@ -0,0 +1,61 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..11} )
+DISTUTILS_USE_PEP517=setuptools
+inherit distutils-r1
+
+DESCRIPTION="Efficient learning tool with powerful digital flash-cards"
+HOMEPAGE="https://mnemosyne-proj.org/"
+
+SRC_URI="https://github.com/mnemosyne-proj/mnemosyne/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~riscv ~x86"
+
+LICENSE="AGPL-3+ LGPL-3+"
+SLOT="0"
+IUSE="latex"
+
+DEPEND="
+	>=dev-python/PyQt5-5.6[gui,widgets,${PYTHON_USEDEP}]
+"
+RDEPEND="${DEPEND}
+	dev-python/argon2-cffi[${PYTHON_USEDEP}]
+	>=dev-python/cheroot-5.0.0[${PYTHON_USEDEP}]
+	dev-python/matplotlib[${PYTHON_USEDEP}]
+	dev-python/pillow[${PYTHON_USEDEP}]
+	dev-python/pyopengl[${PYTHON_USEDEP}]
+	>=dev-python/PyQtWebEngine-5.6[${PYTHON_USEDEP}]
+	>=dev-python/webob-1.4.0[${PYTHON_USEDEP}]
+	latex? (
+		app-text/dvipng
+		virtual/latex-base
+	)
+"
+
+distutils_enable_sphinx mnemosyne/libmnemosyne/docs
+distutils_enable_tests nose
+
+python_compile() {
+	emake -C mnemosyne/pyqt_ui
+	$(cd mnemosyne/pyqt_ui && \
+		pyrcc5 -o mnemosyne_rc.py mnemosyne.qrc || die "pyrcc5 failed")
+	emake -C po update && emake -C po
+	esetup.py build "${@}"
+
+	distutils_pep517_install "${BUILD_DIR}/install"
+}
+
+python_test() {
+	emake -C po ../mo/de/LC_MESSAGES/mnemosyne.mo
+	${EPYTHON} -m nose -v --exe tests || die "Tests fail with ${EPYTHON}"
+}
+
+pkg_postinst() {
+	elog ""
+	elog "The text-to-speech support would be disabled since gTTS is absent in Gentoo."
+	elog ""
+	elog "The Google translate support would be disabled since google_trans is absent in Gentoo."
+	elog ""
+}