diff --git a/sys-libs/zlib-ng/licenses/Zlib b/sys-libs/zlib-ng/licenses/Zlib
new file mode 100644
index 000000000..bd6ea5ac9
--- /dev/null
+++ b/sys-libs/zlib-ng/licenses/Zlib
@@ -0,0 +1,21 @@
+Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler
+
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+
+Jean-loup Gailly        Mark Adler
+jloup@gzip.org          madler@alumni.caltech.edu
+
diff --git a/sys-libs/zlib-ng/zlib_ng-2.0.3.recipe b/sys-libs/zlib-ng/zlib_ng-2.0.3.recipe
new file mode 100644
index 000000000..40cab1d5e
--- /dev/null
+++ b/sys-libs/zlib-ng/zlib_ng-2.0.3.recipe
@@ -0,0 +1,88 @@
+SUMMARY="Fork of the zlib data compression library"
+DESCRIPTION="Zlib replacement with optimizations for next generation systems"
+HOMEPAGE="https://github.com/zlib-ng/zlib-ng"
+COPYRIGHT="1995-2013 Jean-loup Gailly and Mark Adler"
+LICENSE="Zlib"
+REVISION="1"
+SOURCE_URI="https://github.com/zlib-ng/zlib-ng/archive/refs/tags/$portVersion.tar.gz"
+CHECKSUM_SHA256="30305bd1551e3454bddf574f9863caf7137dde0fdbd4dcd7094eacfbb23955a0"
+SOURCE_DIR="zlib-ng-$portVersion"
+
+ARCHITECTURES="x86_gcc2 x86 x86_64 arm ?ppc sparc m68k"
+SECONDARY_ARCHITECTURES="!x86_gcc2 x86"
+
+libVersion="2.0.3"
+libVersionCompat="$libVersion compat >= ${libVersion%%.*}"
+
+PROVIDES="
+	zlib_ng$secondaryArchSuffix = $portVersion
+	lib:libz_ng$secondaryArchSuffix = $libVersionCompat
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	"
+
+PROVIDES_devel="
+	zlib_ng${secondaryArchSuffix}_devel = $portVersion
+	devel:libz_ng$secondaryArchSuffix = $libVersionCompat
+	"
+REQUIRES_devel="
+	zlib_ng$secondaryArchSuffix == $portVersion base
+	"
+
+BUILD_REQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	"
+BUILD_PREREQUIRES="
+	cmd:cmake
+	cmd:gcc$secondaryArchSuffix
+	cmd:grep
+	cmd:ld$secondaryArchSuffix
+	cmd:make
+	"
+
+defineDebugInfoPackage zlib_ng$secondaryArchSuffix \
+	$libDir/libz-ng.so.$libVersion
+
+BUILD()
+{
+	rm -rf build
+	cmake -B build -S . \
+		-DCMAKE_INSTALL_PREFIX:PATH=$prefix \
+		-DINC_INSTALL_DIR=$includeDir \
+		-DZLIB_ENABLE_TESTS=ON \
+		-DWITH_OPTIM=ON \
+		-DWITH_UNALIGNED=OFF \
+		-DWITH_AVX2=OFF \
+		-DWITH_SSSE3=OFF \
+		-DWITH_SSE4=OFF \
+		-DWITH_PCLMULQDQ=OFF \
+		-DAVX2_SLIDEHASH=OFF \
+		-DAVX_CHUNKSET=OFF \
+		-DAVX2_COMPARE258=OFF \
+		-DAVX2_ADLER32=OFF \
+		-DSSE42_CRC=OFF \
+		-DSSE42_COMPARE258=OFF \
+		-DSSSE3_ADLER32=OFF \
+		-DPCLMUL_CRC=OFF \
+		-DWITH_NATIVE_INSTRUCTIONS=OFF
+
+	make $jobArgs -C build
+}
+
+INSTALL()
+{
+	make -C build install
+
+	prepareInstalledDevelLib libz-ng
+	fixPkgconfig
+
+	# devel package
+	packageEntries devel \
+		$developDir
+}
+
+TEST()
+{
+	make -C build test
+}