diff --git a/.github/workflows/cygwin-test.yml b/.github/workflows/cygwin-test.yml
index 96728e51a..13a01dec4 100644
--- a/.github/workflows/cygwin-test.yml
+++ b/.github/workflows/cygwin-test.yml
@@ -70,9 +70,7 @@ jobs:
         command -v git python
         git version
         python --version
-        python -c 'import sys; print(sys.platform)'
-        python -c 'import os; print(os.name)'
-        python -c 'import git; print(git.compat.is_win)'  # NOTE: Deprecated. Use os.name directly.
+        python -c 'import os, sys; print(f"sys.platform={sys.platform!r}, os.name={os.name!r}")'
 
     - name: Test with pytest
       run: |
diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index d21ea3949..3915296ef 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -35,6 +35,12 @@ jobs:
         python-version: ${{ matrix.python-version }}
         allow-prereleases: ${{ matrix.experimental }}
 
+    - name: Set up WSL (Windows)
+      if: startsWith(matrix.os, 'windows')
+      uses: Vampire/setup-wsl@v2.0.2
+      with:
+        distribution: Debian
+
     - name: Prepare this repo for tests
       run: |
         ./init-tests-after-clone.sh
@@ -62,29 +68,15 @@ jobs:
         command -v git python
         git version
         python --version
-        python -c 'import sys; print(sys.platform)'
-        python -c 'import os; print(os.name)'
-        python -c 'import git; print(git.compat.is_win)'  # NOTE: Deprecated. Use os.name directly.
+        python -c 'import os, sys; print(f"sys.platform={sys.platform!r}, os.name={os.name!r}")'
 
     # For debugging hook tests on native Windows systems that may have WSL.
-    - name: Show where bash.exe may be found
+    - name: Show bash.exe candidates (Windows)
       if: startsWith(matrix.os, 'windows')
       run: |
         set +e
-        type -a bash.exe
-        python -c 'import shutil; print(shutil.which("bash.exe"))'
-        bash.exe --version
-        python -c 'import subprocess; p = subprocess.run(["bash.exe", "--version"]); print(f"result: {p!r}")'
-        bash.exe -c 'echo "$BASH"'
-        python -c 'import subprocess; p = subprocess.run(["bash.exe", "-c", """echo "$BASH" """]); print(f"result: {p!r}")'
-        bash.exe -c 'echo "$BASH_VERSION"'
-        python -c 'import subprocess; p = subprocess.run(["bash.exe", "-c", """echo "$BASH_VERSION" """]); print(f"result: {p!r}")'
-        bash.exe -c 'printenv WSL_DISTRO_NAME'
-        python -c 'import subprocess; p = subprocess.run(["bash.exe", "-c", "printenv WSL_DISTRO_NAME"]); print(f"result: {p!r}")'
-        bash.exe -c 'ls -l /proc/sys/fs/binfmt_misc/WSLInterop'
-        python -c 'import subprocess; p = subprocess.run(["bash.exe", "-c", "ls -l /proc/sys/fs/binfmt_misc/WSLInterop"]); print(f"result: {p!r}")'
-        bash.exe -c 'uname -a'
-        python -c 'import subprocess; p = subprocess.run(["bash.exe", "-c", "uname -a"]); print(f"result: {p!r}")'
+        bash.exe -c 'printenv WSL_DISTRO_NAME; uname -a'
+        python -c 'import subprocess; subprocess.run(["bash.exe", "-c", "printenv WSL_DISTRO_NAME; uname -a"])'
       continue-on-error: true
 
     - name: Check types with mypy