diff --git a/scripts/install-windows.sh b/scripts/install-windows-vcpkg.sh
similarity index 96%
rename from scripts/install-windows.sh
rename to scripts/install-windows-vcpkg.sh
index 328823d..4dce356 100644
--- a/scripts/install-windows.sh
+++ b/scripts/install-windows-vcpkg.sh
@@ -27,7 +27,7 @@ echo "set(VCPKG_BUILD_TYPE release)" >> triplets/x64-windows.cmake
 echo "set(VCPKG_BUILD_TYPE release)" >> triplets/x64-windows-static.cmake
 echo "set(VCPKG_BUILD_TYPE release)" >> triplets/x86-windows.cmake
 echo "set(VCPKG_BUILD_TYPE release)" >> triplets/community/x64-windows-static-md.cmake
-export VCPKG_DEFAULT_TRIPLET=x64-windows
+export VCPKG_DEFAULT_TRIPLET=x64-windows-static
 #./vcpkg install llvm  # takes very long time
 (
 	set +e
diff --git a/scripts/install.sh b/scripts/install.sh
new file mode 100644
index 0000000..ecf0631
--- /dev/null
+++ b/scripts/install.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+set -xeu
+
+ci_dir="$(dirname "$0")"
+
+if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+	os_family="Linux"
+elif [[ "$OSTYPE" == "darwin"* ]]; then
+	os_family="macOS"
+elif [[ "$OSTYPE" == "cygwin" || "$OSTYPE" == "msys" || "$OSTYPE" == "win32" ]]; then
+	os_family="Windows"
+elif [[ "$OSTYPE" == "freebsd"* ]]; then
+	exit "FreeBSD is not supported"
+else
+	exit "Unknown OS: $OSTYPE"
+fi
+
+if [[ "$os_family" == "Linux" ]]; then
+	# free up disk space in Github Actions image: https://github.com/actions/runner-images/issues/2840
+	sudo rm -rf /usr/share/dotnet /opt/ghc /usr/local/share/boost
+	if [[ "${VCPKG_VERSION:-}" != "" ]]; then # vcpkg build
+		"$ci_dir/install-ubuntu-vcpkg.sh"
+	else
+		"$ci_dir/install-ubuntu.sh"
+	fi
+elif [[ "$os_family" == "macOS" ]]; then
+	if [[ "${BREW_OPENCV_VERSION:-}" != "" ]]; then # brew build
+		"$ci_dir/install-macos-brew.sh"
+	elif [[ "${VCPKG_VERSION:-}" != "" ]]; then # vcpkg build
+		"$ci_dir/install-macos-vcpkg.sh"
+	else
+		"$ci_dir/install-macos-framework.sh"
+	fi
+elif [[ "$os_family" == "Windows" ]]; then
+	export CHOCO_LLVM_VERSION=18.1.8
+	if [[ "${VCPKG_VERSION:-}" != "" ]]; then # vcpkg build
+		"$ci_dir/install-windows-vcpkg.sh"
+	else # chocolatey build
+		"$ci_dir/install-windows-chocolatey.sh"
+	fi
+fi
\ No newline at end of file