diff --git a/dev-util/gersemi/Manifest b/dev-util/gersemi/Manifest
index eef6210537..1dd8f02274 100644
--- a/dev-util/gersemi/Manifest
+++ b/dev-util/gersemi/Manifest
@@ -1,6 +1,7 @@
 DIST aho-corasick-1.1.4.crate 184015 BLAKE2B 088766e505a828a221a9bca29cb1833ac3964a538cda62d12b723a263fe0e588406af0b710cf87ef67b0ccb9aa3bf69f42e0e5225ade47abe93c73fcaca69ec1 SHA512 c77e35191b00546f5e499fab154170cedd619599e7250f92db9fba0a41c833eb426f214e58b00c5c39f8757406b33492b3241cb8cb233ce384ad0683c3ee4b62
 DIST gersemi-0.27.2.tar.gz 177755 BLAKE2B 9a9e496b000285ae25f5caeac9ce7a2a2fe312c73c67e67db4144b6c7e7bf4d3f562fb61902dbf5d88056584d2ed1b52c38101e04584bdfc781ee5d4a24cf00f SHA512 288c7d32e0480868c5d66302baeb963e035a2358ce1ae0b93ae793f31517ffb448f21a3671826a0240a2ac59e6716f7d8d5c9c185c9c7ff3857584954f4438fc
 DIST gersemi-0.27.4.tar.gz 179261 BLAKE2B e4b479098de7384c0f856d85c35a987abbceda0305dddf1c5f4f8c0fb1ef4836e34c4841e539d27bf649d11903cd3d4c4fdd31ac76eabc42008582bd9839f07c SHA512 5e034914a3228854429ee6f4eccb34a49fa12a952e503664eb93f6aeae22a1d0a939bac7bf0dd664a1535715e790bd14bdf15d8fe79278f7894bd3daf7b5af43
+DIST gersemi-0.27.5.tar.gz 179358 BLAKE2B a072ae1eaead847f32f6460cd892f17641c36d402fef8777d9201889f73951ed04d28100b7d74629ade40362b1b274283c163c1c012045cea3ec004bd160cea0 SHA512 cfa2191fe09706b4bed265852a316ece19fb997a21ac092cc6ebe17c0e13654d059578f977a2613f5c17c2d2cb159f6d2ef9126190be5a8d8b9e3b60ec4b47c0
 DIST heck-0.5.0.crate 11517 BLAKE2B 5365ec43b2239a76b33a174f1a4292ece4147f9d382a68c6c60db78fdc8bad0afb1d51a65bcb25e96675372faa4ea37c318265030b0546ba51942f7c929e1835 SHA512 f044fc9c3d22466629fd8f772ec0555350fd611c0cfadca51d99a3d2f10e155f77c1091916c8a95a6b9b499f366c2e99a5fbf45b010f988bfb9b2501bf9f6a76
 DIST libc-0.2.185.crate 821775 BLAKE2B e0e93466a29c9d19f7d9ab3581b491908d06873a9c57a96b0cae2eed0f0d1cb184ebe80bc61e36d5ab316ab35dca529a322b29e6895f7f339e72c79cca7f8ca2 SHA512 c8dbcaaf2e5d8377a4d1003af4a7210fbfe4f9b1e8497f07d88a231a8d5c9f67014e650a5e18e913e7b4d6a1835c4cbc9c31ce0cd224ea28acbdbb39034a300e
 DIST libc-0.2.186.crate 821883 BLAKE2B ebe7aac5f8937a8064c64a0d4dc72e5fc794080e09b96c6d245bdec0fd9a19d49ab38e25306e22e47564764cf5dcde45855237cffc70230a143eca2626bd5c3c SHA512 6a58e671ec6811dff9a0d7d4db8f37d38bcbca9efff20dad4706190e5cdb77b426567754bcf0ef0f2d0c31d6506401f724f3ca500b9bed57bb8605b1141ed690
diff --git a/dev-util/gersemi/gersemi-0.27.5.ebuild b/dev-util/gersemi/gersemi-0.27.5.ebuild
new file mode 100644
index 0000000000..37033bb47e
--- /dev/null
+++ b/dev-util/gersemi/gersemi-0.27.5.ebuild
@@ -0,0 +1,85 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CARGO_OPTIONAL=1
+DISTUTILS_EXT=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{12..14} )
+
+CRATES="
+	aho-corasick@1.1.4
+	heck@0.5.0
+	libc@0.2.186
+	memchr@2.8.0
+	once_cell@1.21.4
+	portable-atomic@1.13.1
+	proc-macro2@1.0.106
+	pyo3-build-config@0.28.3
+	pyo3-ffi@0.28.3
+	pyo3-macros-backend@0.28.3
+	pyo3-macros@0.28.3
+	pyo3@0.28.3
+	quote@1.0.45
+	regex-automata@0.4.14
+	regex-syntax@0.8.10
+	regex@1.12.3
+	syn@2.0.117
+	target-lexicon@0.13.5
+	unicode-ident@1.0.24
+"
+
+RUST_MIN_VER="1.83"
+
+inherit cargo distutils-r1 optfeature
+
+DESCRIPTION="A formatter to make your CMake code the real treasure"
+HOMEPAGE="https://github.com/BlankSpruce/gersemi"
+SRC_URI="
+	https://github.com/BlankSpruce/gersemi/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz
+	${CARGO_CRATE_URIS}
+"
+
+LICENSE="MPL-2.0"
+# Dependent crate licenses
+LICENSE+="
+	Apache-2.0-with-LLVM-exceptions Unicode-3.0
+	|| ( Apache-2.0 MIT )
+	|| ( MIT Unlicense )
+"
+SLOT="0"
+KEYWORDS="~amd64"
+
+RDEPEND="
+	dev-python/ignore-python[${PYTHON_USEDEP}]
+	dev-python/lark[${PYTHON_USEDEP}]
+	dev-python/platformdirs[${PYTHON_USEDEP}]
+	dev-python/pyyaml[${PYTHON_USEDEP}]
+"
+BDEPEND="
+	${RUST_DEPEND}
+	dev-python/setuptools-rust[${PYTHON_USEDEP}]
+
+	test? (
+		dev-python/pydantic[${PYTHON_USEDEP}]
+		dev-vcs/git
+	)
+"
+
+QA_FLAGS_IGNORED="usr/lib.*/py.*/site-packages/gersemi.*.so"
+
+EPYTEST_DESELECT=(
+	tests/test_configuration.py::test_schema_in_repository_is_consistent_with_configuration_definition
+)
+EPYTEST_PLUGINS=()
+
+distutils_enable_tests pytest
+
+src_unpack() {
+	cargo_src_unpack
+}
+
+pkg_postinst() {
+	optfeature "colorized diffs support" dev-python/colorama
+}