diff --git a/.github/scripts/bootstrap.sh b/.github/scripts/bootstrap.sh
index 5f805e5e..0190802d 100644
--- a/.github/scripts/bootstrap.sh
+++ b/.github/scripts/bootstrap.sh
@@ -12,7 +12,10 @@ git describe --always
 
 ./scripts/bootstrap/bootstrap-haskell
 
-[ "$(ghc --numeric-version)" = "${BOOTSTRAP_HASKELL_GHC_VERSION}" ]
-# https://github.com/actions/runner-images/issues/7061
-[ "$(ghcup config | grep --color=never meta-mode)" = "meta-mode: Lax" ]
+# on windows remove the carriage return
+version=$(ghc --numeric-version | tr -d '\r\n')
+
+[ "$version" = "${BOOTSTRAP_HASKELL_GHC_VERSION}" ]
 
+# https://github.com/actions/runner-images/issues/7061
+[ "$(ghcup config | grep --color=never meta-mode | tr -d '\r\n')" = "meta-mode: Lax" ]
diff --git a/.github/scripts/env.sh b/.github/scripts/env.sh
index 61fd3c65..b202f14a 100644
--- a/.github/scripts/env.sh
+++ b/.github/scripts/env.sh
@@ -20,9 +20,9 @@ if [ "${RUNNER_OS}" = "Windows" ] ; then
 	# on windows use pwd to get unix style path
 	CI_PROJECT_DIR="$(pwd)"
 	export CI_PROJECT_DIR
-    export GHCUP_INSTALL_BASE_PREFIX="/c"
-    export GHCUP_BIN="$GHCUP_INSTALL_BASE_PREFIX/ghcup/bin"
-    export PATH="$GHCUP_BIN:$PATH"
+    # export GHCUP_INSTALL_BASE_PREFIX="/c"
+    # export GHCUP_BIN="$GHCUP_INSTALL_BASE_PREFIX/ghcup/bin"
+    # export PATH="$GHCUP_BIN:$PATH"
 	export CABAL_DIR="C:\\Users\\runneradmin\\AppData\\Roaming\\cabal"
 else
 	export CI_PROJECT_DIR="${GITHUB_WORKSPACE}"
diff --git a/.github/workflows/bootstrap.yaml b/.github/workflows/bootstrap.yaml
index 49b9a8b5..15936dce 100644
--- a/.github/workflows/bootstrap.yaml
+++ b/.github/workflows/bootstrap.yaml
@@ -57,3 +57,28 @@ jobs:
           Write-Host "Current Working Directory: $curDir"
           Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; try { & ([ScriptBlock]::Create((Invoke-WebRequest https://raw.githubusercontent.com/${{ github.repository }}/${{ github.sha }}/scripts/bootstrap/bootstrap-haskell.ps1 -UseBasicParsing))) -InstallDir ${GITHUB_WORKSPACE} -BootstrapUrl ("{0}/scripts/bootstrap/bootstrap-haskell" -f $curDir) -InBash -Msys2Env "MINGW64" } catch { Write-Error $_ }
         shell: pwsh
+
+  bootstrap-windows-cygwin:
+    name: bootstrap-windows-cygwin
+    runs-on: windows-latest
+    env:
+      BOOTSTRAP_HASKELL_CABAL_VERSION: 3.12.1.0
+      BOOTSTRAP_HASKELL_GHC_VERSION: 9.6.7
+      BOOTSTRAP_HASKELL_NONINTERACTIVE: yes
+      ARCH: 64
+      JSON_VERSION: "0.0.7"
+    steps:
+      - run: git config --global core.autocrlf input
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          submodules: 'true'
+
+      - name: Install cygwin
+        uses: cygwin/cygwin-install-action@master
+        with:
+          install-dir: 'c:\cygwin64'
+
+      - name: Run bootstrap
+        run: |
+          sh ./.github/scripts/bootstrap.sh
diff --git a/scripts/bootstrap/bootstrap-haskell b/scripts/bootstrap/bootstrap-haskell
index e55efaeb..88697b8b 100755
--- a/scripts/bootstrap/bootstrap-haskell
+++ b/scripts/bootstrap/bootstrap-haskell
@@ -39,7 +39,9 @@ die() {
     exit 2
 }
 
+echo "DEBUG:START"
 plat="$(uname -s)"
+echo "DEBUG:plat ${plat}"
 arch=$(uname -m)
 ghver="0.1.50.2"
 : "${GHCUP_BASE_URL:=https://downloads.haskell.org/~ghcup}"
@@ -80,13 +82,20 @@ set_msys2_env_dir() {
 }
 
 case "${plat}" in
-        MSYS*|MINGW*|CYGWIN*)
+        MSYS*|MINGW*)
 			: "${GHCUP_INSTALL_BASE_PREFIX:=/c}"
 			GHCUP_DIR=$(cygpath -u "${GHCUP_INSTALL_BASE_PREFIX}/ghcup")
 			GHCUP_BIN=$(cygpath -u "${GHCUP_INSTALL_BASE_PREFIX}/ghcup/bin")
 			: "${GHCUP_MSYS2:=${GHCUP_DIR}/msys64}"
 			set_msys2_env_dir
 			;;
+        CYGWIN*)
+			: "${GHCUP_INSTALL_BASE_PREFIX:=/cygdrive/c}"
+			GHCUP_DIR=$(cygpath -u "${GHCUP_INSTALL_BASE_PREFIX}/ghcup")
+			GHCUP_BIN=$(cygpath -u "${GHCUP_INSTALL_BASE_PREFIX}/ghcup/bin")
+			: "${GHCUP_MSYS2:=${GHCUP_DIR}/msys64}"
+			set_msys2_env_dir
+			;;
 		*)
 			: "${GHCUP_INSTALL_BASE_PREFIX:=$HOME}"
 
@@ -100,6 +109,9 @@ case "${plat}" in
 			;;
 esac
 
+echo "DEBUG:GHCUP_INSTALL_BASE_PREFIX ${GHCUP_INSTALL_BASE_PREFIX}"
+echo "DEBUG:GHCUP_DIR ${GHCUP_DIR}"
+
 : "${BOOTSTRAP_HASKELL_GHC_VERSION:=recommended}"
 : "${BOOTSTRAP_HASKELL_CABAL_VERSION:=recommended}"
 : "${BOOTSTRAP_HASKELL_STACK_VERSION:=recommended}"