diff --git a/dev-python/installer/installer-0.5.1.recipe b/dev-python/installer/installer-0.5.1.recipe
new file mode 100644
index 000000000..685f6e469
--- /dev/null
+++ b/dev-python/installer/installer-0.5.1.recipe
@@ -0,0 +1,67 @@
+SUMMARY="A library for installing Python wheels"
+DESCRIPTION="This is a low-level library for installing a Python package from a wheel distribution.
+It provides basic functionality and abstractions for handling wheels and installing packages from \
+wheels.
+
+- Logic for unpacking a wheel (i.e. installation).
+- Abstractions for various parts of the unpacking process.
+- Extensible simple implementations of the abstractions.
+- Platform-independent Python script wrapper generation."
+HOMEPAGE="https://pypi.org/project/installer/"
+COPYRIGHT="2020 Pradyun Gedam"
+LICENSE="MIT"
+REVISION="1"
+pypiVersion="74/b7/9187323cd732840f1cddd6a9f05961406636b50c799eef37c920b63110c0"
+SOURCE_URI="https://files.pythonhosted.org/packages/$pypiVersion/installer-$portVersion.tar.gz"
+CHECKSUM_SHA256="f970995ec2bb815e2fdaf7977b26b2091e1e386f0f42eafd5ac811953dc5d445"
+PATCHES="1a3a7d208fd48446de3d35e5c640378dc1dfd437.patch"
+
+ARCHITECTURES="any"
+
+PROVIDES="
+	$portName = $portVersion
+	"
+REQUIRES="
+	haiku
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	"
+
+PYTHON_PACKAGES=(python3 python38 python39 python310)
+PYTHON_VERSIONS=(3.7 3.8 3.9 3.10)
+for i in "${!PYTHON_PACKAGES[@]}"; do
+pythonPackage=${PYTHON_PACKAGES[i]}
+pythonVersion=${PYTHON_VERSIONS[$i]}
+eval "PROVIDES_${pythonPackage}=\"\
+	${portName}_$pythonPackage = $portVersion\
+	\"; \
+REQUIRES_$pythonPackage=\"\
+	haiku\n\
+	cmd:python$pythonVersion\
+	\""
+BUILD_REQUIRES="$BUILD_REQUIRES
+	setuptools_$pythonPackage"
+BUILD_PREREQUIRES="$BUILD_PREREQUIRES
+	cmd:python$pythonVersion"
+done
+
+INSTALL()
+{
+	for i in "${!PYTHON_PACKAGES[@]}"; do
+		pythonPackage=${PYTHON_PACKAGES[i]}
+		pythonVersion=${PYTHON_VERSIONS[$i]}
+
+		python=python$pythonVersion
+		installLocation=$prefix/lib/$python/vendor-packages/
+		export PYTHONPATH=$installLocation:$PYTHONPATH
+		mkdir -p $installLocation
+		rm -rf build
+		$python setup.py build install \
+			--root=/ --prefix=$prefix
+
+		packageEntries  $pythonPackage \
+			$prefix/lib/python*
+	done
+}
diff --git a/dev-python/installer/patches/1a3a7d208fd48446de3d35e5c640378dc1dfd437.patch b/dev-python/installer/patches/1a3a7d208fd48446de3d35e5c640378dc1dfd437.patch
new file mode 100644
index 000000000..fb0c247c7
--- /dev/null
+++ b/dev-python/installer/patches/1a3a7d208fd48446de3d35e5c640378dc1dfd437.patch
@@ -0,0 +1,120 @@
+From 1a3a7d208fd48446de3d35e5c640378dc1dfd437 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
+Date: Sun, 5 Jun 2022 12:08:44 +0200
+Subject: [PATCH] main: Implement --prefix option to override install path
+
+Implement a --prefix option that can be used to override platbase
+and base when expanding the paths from install scheme.  This can be used
+to install paths to a layout using another prefix than the one used
+to run installer.
+
+Gentoo use case for this is running installer inside a venv to prepare
+installation images for the real system.  The nixOS maintainers have
+also indicated interest in this feature.
+---
+ src/installer/__main__.py | 23 ++++++++++++++++++-----
+ tests/test_main.py        | 30 ++++++++++++++++++++++++++++++
+ 2 files changed, 48 insertions(+), 5 deletions(-)
+
+diff --git a/src/installer/__main__.py b/src/installer/__main__.py
+index 3357ec5..51014b9 100644
+--- a/src/installer/__main__.py
++++ b/src/installer/__main__.py
+@@ -23,6 +23,13 @@ def _get_main_parser() -> argparse.ArgumentParser:
+         type=str,
+         help="destination directory (prefix to prepend to each file)",
+     )
++    parser.add_argument(
++        "--prefix",
++        "-p",
++        metavar="path",
++        type=str,
++        help="override prefix to install packages to",
++    )
+     parser.add_argument(
+         "--compile-bytecode",
+         action="append",
+@@ -39,12 +46,18 @@ def _get_main_parser() -> argparse.ArgumentParser:
+     return parser
+ 
+ 
+-def _get_scheme_dict(distribution_name: str) -> Dict[str, str]:
++def _get_scheme_dict(
++    distribution_name: str, prefix: Optional[str] = None
++) -> Dict[str, str]:
+     """Calculate the scheme dictionary for the current Python environment."""
+-    scheme_dict = sysconfig.get_paths()
++    vars = {}
++    if prefix is None:
++        installed_base = sysconfig.get_config_var("base")
++        assert installed_base
++    else:
++        vars["base"] = vars["platbase"] = installed_base = prefix
+ 
+-    installed_base = sysconfig.get_config_var("base")
+-    assert installed_base
++    scheme_dict = sysconfig.get_paths(vars=vars)
+ 
+     # calculate 'headers' path, not currently in sysconfig - see
+     # https://bugs.python.org/issue44445. This is based on what distutils does.
+@@ -72,7 +85,7 @@ def _main(cli_args: Sequence[str], program: Optional[str] = None) -> None:
+ 
+     with WheelFile.open(args.wheel) as source:
+         destination = SchemeDictionaryDestination(
+-            scheme_dict=_get_scheme_dict(source.distribution),
++            scheme_dict=_get_scheme_dict(source.distribution, prefix=args.prefix),
+             interpreter=sys.executable,
+             script_kind=get_launcher_kind(),
+             bytecode_optimization_levels=bytecode_levels,
+diff --git a/tests/test_main.py b/tests/test_main.py
+index c6f7c40..391a13d 100644
+--- a/tests/test_main.py
++++ b/tests/test_main.py
+@@ -1,3 +1,5 @@
++import os
++
+ from installer.__main__ import _get_scheme_dict as get_scheme_dict
+ from installer.__main__ import _main as main
+ 
+@@ -7,6 +9,14 @@ def test_get_scheme_dict():
+     assert set(d.keys()) >= {"purelib", "platlib", "headers", "scripts", "data"}
+ 
+ 
++def test_get_scheme_dict_prefix():
++    d = get_scheme_dict(distribution_name="foo", prefix="/foo")
++    for key in ("purelib", "platlib", "headers", "scripts", "data"):
++        assert d[key].startswith(
++            f"{os.sep}foo"
++        ), f"{key} does not start with /foo: {d[key]}"
++
++
+ def test_main(fancy_wheel, tmp_path):
+     destdir = tmp_path / "dest"
+ 
+@@ -23,6 +33,26 @@ def test_main(fancy_wheel, tmp_path):
+     }
+ 
+ 
++def test_main_prefix(fancy_wheel, tmp_path):
++    destdir = tmp_path / "dest"
++
++    main([str(fancy_wheel), "-d", str(destdir), "-p", "/foo"], "python -m installer")
++
++    installed_py_files = list(destdir.rglob("*.py"))
++
++    for f in installed_py_files:
++        assert str(f.parent).startswith(
++            str(destdir / "foo")
++        ), f"path does not respect destdir+prefix: {f}"
++    assert {f.stem for f in installed_py_files} == {"__init__", "__main__", "data"}
++
++    installed_pyc_files = destdir.rglob("*.pyc")
++    assert {f.name.split(".")[0] for f in installed_pyc_files} == {
++        "__init__",
++        "__main__",
++    }
++
++
+ def test_main_no_pyc(fancy_wheel, tmp_path):
+     destdir = tmp_path / "dest"
+