diff --git a/re.sh b/re.sh
new file mode 100755
index 0000000..b20ba22
--- /dev/null
+++ b/re.sh
@@ -0,0 +1,176 @@
+#! /usr/bin/env sh
+
+root="/prj/venv"
+url="http://localhost:8000"
+url_pypi="${url}/pypi/os/simple"
+
+activate() {
+	echo
+	export VIRTUAL_ENV="${1}"
+	echo "→ ${VIRTUAL_ENV}"
+	export OLD_PATH="${PATH}"
+	export PATH="${VIRTUAL_ENV}/bin:${PATH}"
+	echo "→ ${PATH}"
+	python3 --version
+	pip --version
+}
+caches() {
+	local command="${1}"
+	set \
+		".cache/pip" \
+		".cache/uv" \
+		".local/share/pip" \
+		".local/share/uv"
+	echo
+	echo "caches:"
+	for cache in "${@}"; do
+		"${command}" "${HOME}/${cache}"
+	done
+}
+deactivate() {
+	echo
+	echo "← ${VIRTUAL_ENV}"
+	export PATH="${OLD_PATH}"
+	echo "← ${PATH}"
+	unset OLD_PATH VIRTUAL_ENV
+}
+list() {
+	echo
+	ls -a -l "${1}/${2}"
+}
+list_venv() {
+	list "${1}" "bin"
+}
+pip_install() {
+	echo
+	pip install \
+		--index-url "${url_pypi}" \
+		--no-cache-dir \
+		"${@}"
+}
+remove() {
+	rm --force --recursive "${@}"
+}
+uv_install() {
+set \
+	"pelican" \
+	\
+	"hatch" \
+	\
+	"Sphinx" \
+	"sphinx-rtd-theme" \
+	\
+	"gitlint" \
+	\
+	"pydoclint" \
+	"pylint" \
+	"ruff" \
+	\
+	"pytest" \
+	\
+	"toml" \
+	\
+	"twine" \
+	\
+	"mypy" \
+	"pyright" \
+	\
+	"ruamel.yaml" \
+	"PyYAML" \
+	"types-PyYAML"
+	echo
+	uv pip install --index-url "${url_pypi}" "${@}"
+}
+uv_python() {
+	echo
+	export UV_PYTHON_INSTALL_MIRROR="${url}/cpypy"
+	uv python install "${2}"
+	unset UV_PYTHON_INSTALL_MIRROR
+}
+uv_venv() {
+	echo
+	uv venv \
+	--allow-existing \
+	--index-url "${url_pypi}" \
+	--python "${2}" \
+	--relocatable \
+	--seed \
+	"${1}"
+}
+venvs() {
+	local action="${1}"
+	local venv version
+	set \
+		"3.12" \
+		"3.11" \
+		"3.10"
+	for version in "${@}"; do
+		url_pypi="${url}/pypi/${version}/simple"
+		venv="${root}/${version}"
+		echo
+		echo "${venv} ← ${action}"
+		case "${action}" in
+		"create")
+			export UV_PYTHON_INSTALL_DIR="${venv}/cpypy"
+			echo "→ install python ${version}"
+			uv_python "${venv}" "${version}"
+			echo "→ create venv ${version}"
+			uv_venv "${venv}" "${version}"
+			unset UV_PYTHON_INSTALL_DIR
+			;;
+		"init")
+			activate "${venv}"
+			pip_install "uv"
+			deactivate
+			;;
+		"install")
+			activate "${venv}"
+			uv_install
+			deactivate
+			;;
+		"link")
+			activate "${venv}"
+			for module in "rwx"; do
+				ln --symbolic \
+					"/rwx/rwx/${module}" \
+					"${venv}/lib/python${version}/site-packages/${module}"
+			done
+			deactivate
+			;;
+		"list")
+			activate "${venv}"
+			list_venv "${venv}"
+			deactivate
+			;;
+		"relate")
+			absolute="$(readlink -f "${venv}/bin/python")"
+			prevenv="$(readlink -f "${venv}")"
+			relative=$(echo "${absolute}" | sed "s|${prevenv}|..|")
+			ln --force --symbolic "${relative}" "${venv}/bin/python"
+			;;
+		*) ;;
+		esac
+	done
+}
+
+caches remove
+
+remove "${root}"
+
+os="${root}/os"
+python3 -m "venv" "${os}"
+activate "${os}"
+list_venv "${os}"
+pip_install --upgrade "pip"
+pip_install "uv"
+list_venv "${os}"
+venvs create
+deactivate
+
+venvs init
+venvs relate
+venvs link
+venvs install
+venvs list
+
+caches list_venv