diff --git a/kde-apps/cantor/Manifest b/kde-apps/cantor/Manifest
index f05ec074990fa..57c30b3cc1f2b 100644
--- a/kde-apps/cantor/Manifest
+++ b/kde-apps/cantor/Manifest
@@ -1 +1,2 @@
 DIST cantor-24.12.3.tar.xz 10875632 BLAKE2B 19f6574baf9686e45542967f966779bd9fb793d4b6d1a8f99ee9170482ad30328e7da0ea3ff72c5d2e71b1621b963d0ffba8f222f47a8c5621ee0b0f48d4b948 SHA512 9c2896883ea012b853a6ca4b593bf25b0a3799f27808bfab2fdc3da045368769cdf3c6f04266531f46a6df731caea474cd64662181abb3b816ab8db116d732af
+DIST cantor-25.04.0.tar.xz 10905352 BLAKE2B 76699d075c4cca91ec1bfde14bcc2093a11e9c2696453239b475b14b30b8935347304f46855fc48294330039415f2e27a23a1418793c2a6258f0d10de86b633e SHA512 bd3449344633a1f89f6f74377954f81ed4ab91ac74a5419eb3ce97d193003c3ed4cb42c42af9eeeeb52f6d2bb129f4d911275998ca614327811f9c9d3a3cc567
diff --git a/kde-apps/cantor/cantor-25.04.0.ebuild b/kde-apps/cantor/cantor-25.04.0.ebuild
new file mode 100644
index 0000000000000..c72791b3be9ff
--- /dev/null
+++ b/kde-apps/cantor/cantor-25.04.0.ebuild
@@ -0,0 +1,116 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CMAKE_MAKEFILE_GENERATOR="emake"
+ECM_HANDBOOK="forceoptional"
+ECM_TEST="forceoptional"
+LUA_COMPAT=( luajit )
+PYTHON_COMPAT=( python3_{10..12} )
+PVCUT=$(ver_cut 1-3)
+KFMIN=6.9.0
+QTMIN=6.7.2
+inherit ecm gear.kde.org lua-single optfeature python-single-r1 xdg
+
+DESCRIPTION="Interface for doing mathematics and scientific computing"
+HOMEPAGE="https://apps.kde.org/cantor/"
+
+LICENSE="GPL-2" # TODO: CHECK
+SLOT="6"
+KEYWORDS="~amd64 ~arm64"
+IUSE="+analitza julia lua postscript python qalculate R webengine"
+
+REQUIRED_USE="lua? ( ${LUA_REQUIRED_USE} ) python? ( ${PYTHON_REQUIRED_USE} )"
+RESTRICT="test"
+
+# TODO Add Sage Mathematics Software backend (https://www.sagemath.org)
+DEPEND="
+	>=app-text/poppler-23.12.0[qt6]
+	dev-libs/libxml2:2
+	dev-libs/libxslt
+	>=dev-qt/qtbase-${QTMIN}:6[gui,widgets,xml]
+	>=dev-qt/qtsvg-${QTMIN}:6
+	>=kde-frameworks/karchive-${KFMIN}:6
+	>=kde-frameworks/kcompletion-${KFMIN}:6
+	>=kde-frameworks/kconfig-${KFMIN}:6
+	>=kde-frameworks/kconfigwidgets-${KFMIN}:6
+	>=kde-frameworks/kcoreaddons-${KFMIN}:6
+	>=kde-frameworks/kcrash-${KFMIN}:6
+	>=kde-frameworks/ki18n-${KFMIN}:6
+	>=kde-frameworks/kiconthemes-${KFMIN}:6
+	>=kde-frameworks/kio-${KFMIN}:6
+	>=kde-frameworks/knewstuff-${KFMIN}:6
+	>=kde-frameworks/kparts-${KFMIN}:6
+	>=kde-frameworks/ktexteditor-${KFMIN}:6
+	>=kde-frameworks/ktextwidgets-${KFMIN}:6
+	>=kde-frameworks/kwidgetsaddons-${KFMIN}:6
+	>=kde-frameworks/kxmlgui-${KFMIN}:6
+	>=kde-frameworks/syntax-highlighting-${KFMIN}:6
+	analitza? ( >=kde-apps/analitza-${PVCUT}:6 )
+	julia? ( dev-lang/julia )
+	lua? ( ${LUA_DEPS} )
+	qalculate? (
+		sci-libs/cln
+		sci-libs/libqalculate:=
+	)
+	postscript? ( app-text/libspectre )
+	python? (
+		${PYTHON_DEPS}
+		>=dev-qt/qtbase-${QTMIN}:6[dbus]
+	)
+	R? ( dev-lang/R )
+	webengine? (
+		>=dev-qt/qttools-${QTMIN}:6[assistant]
+		>=dev-qt/qtwebengine-${QTMIN}:6[widgets]
+	)
+"
+# !analitza?
+RDEPEND="${DEPEND}
+	!analitza? ( !julia? ( !lua? ( !python? ( !qalculate? ( !R? (
+		|| (
+			sci-mathematics/maxima
+			sci-mathematics/octave
+		)
+	) ) ) ) ) )
+"
+BDEPEND="x11-misc/shared-mime-info"
+
+pkg_setup() {
+	use lua && lua-single_pkg_setup
+	use python && python-single-r1_pkg_setup
+}
+
+src_configure() {
+	use julia && addpredict /proc/self/mem # bug 602894
+
+	local mycmakeargs=(
+		$(cmake_use_find_package analitza Analitza6)
+		$(cmake_use_find_package julia Julia)
+		$(cmake_use_find_package lua LuaJIT)
+		-DUSE_LIBSPECTRE=$(usex postscript)
+		$(cmake_use_find_package python Python3)
+		$(cmake_use_find_package qalculate Qalculate)
+		$(cmake_use_find_package R R)
+		-DENABLE_EMBEDDED_DOCUMENTATION=$(usex webengine)
+	)
+	use lua && mycmakeargs+=(
+		-DLUAJIT_INCLUDEDIR="${EPREFIX}/$(lua_get_include_dir)"
+		-DLUAJIT_LIBDIR="${EPREFIX}/$(lua_get_cmod_dir)"
+	)
+	ecm_src_configure
+}
+
+src_compile() {
+	# -j1 for bug #919576
+	MAKEOPTS="-j1" ecm_src_compile
+}
+
+pkg_postinst() {
+	if [[ -z "${REPLACING_VERSIONS}" ]]; then
+		optfeature "Maxima backend" sci-mathematics/maxima
+		optfeature "Octave backend" sci-mathematics/octave
+		optfeature "LaTeX support" virtual/latex-base
+	fi
+	xdg_pkg_postinst
+}