diff --git a/dev-libs/nihstro/Manifest b/dev-libs/nihstro/Manifest
new file mode 100644
index 0000000000..f274e2b9e8
--- /dev/null
+++ b/dev-libs/nihstro/Manifest
@@ -0,0 +1 @@
+DIST nihstro-0_pre20250505.tar.gz 110629 BLAKE2B f6b24d16d5b8300221d596d91e79398db8530623dd7f0f133e3a5f9caf9c76b91612012afd7a653d65613c154855873c694a4770be9c573889f2e2fad3af178b SHA512 f291051c927cf06d783234847baa124f134487aab9952938ffafcd023481d0e744caec1889b908f95867772ca338d57d780152692405028a850d1af6ce60f310
diff --git a/dev-libs/nihstro/metadata.xml b/dev-libs/nihstro/metadata.xml
new file mode 100644
index 0000000000..f2af785095
--- /dev/null
+++ b/dev-libs/nihstro/metadata.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>contact@paveloom.dev</email>
+    <name>Pavel Sobolev</name>
+  </maintainer>
+  <upstream>
+    <bugs-to>https://github.com/neobrain/nihstro/issues</bugs-to>
+    <remote-id type="github">neobrain/nihstro</remote-id>
+  </upstream>
+</pkgmetadata>
diff --git a/dev-libs/nihstro/nihstro-0_pre20250505.ebuild b/dev-libs/nihstro/nihstro-0_pre20250505.ebuild
new file mode 100644
index 0000000000..8948e2566a
--- /dev/null
+++ b/dev-libs/nihstro/nihstro-0_pre20250505.ebuild
@@ -0,0 +1,34 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+EGIT_COMMIT="f4d8659decbfe5d234f04134b5002b82dc515a44"
+
+DESCRIPTION="3DS shader assembler and disassembler"
+HOMEPAGE="https://github.com/neobrain/nihstro"
+SRC_URI="https://github.com/neobrain/nihstro/archive/${EGIT_COMMIT}.tar.gz -> ${P}.tar.gz"
+
+S="${WORKDIR}/${PN}-${EGIT_COMMIT}"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64"
+
+RDEPEND="dev-libs/boost:="
+
+src_configure() {
+	local mycmakeargs=(
+		-Wno-dev
+	)
+
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+
+	doheader -r include/nihstro
+}