diff --git a/.github/workflows/test-valgrind.yml b/.github/workflows/test-valgrind.yml
index 3ebea9439..41a61a775 100644
--- a/.github/workflows/test-valgrind.yml
+++ b/.github/workflows/test-valgrind.yml
@@ -1,29 +1,27 @@
 name: Test valgrind
 
 on:
+  workflow_dispatch:
   schedule:
     - cron: '13 6 * * *'
-  workflow_dispatch:
-    inputs:
-      scripts_test_options:
-        description: 'Extra options for scripts/test.py.'
 
 jobs:
 
   valgrind:
-    name: Test valgrind
-    runs-on: ${{ matrix.os }}
+    name: valgrind
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        os: [ubuntu-latest]
-
+        args: [
+            '',
+            '-m "git:--branch master https://github.com/ArtifexSoftware/mupdf"', 
+            '-m "git:--branch 1.26.x https://github.com/ArtifexSoftware/mupdf"',
+            ]
+      fail-fast: false
+    
     steps:
-
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
-
-      - name: test_mupdf-master-branch
-        env:
-            PYMUDF_SCRIPTS_TEST_options: ${{inputs.scripts_test_options}}
+      - name: valgrind
         run:
-          python scripts/test.py -m 'git:--recursive --depth 1 --shallow-submodules --branch master https://github.com/ArtifexSoftware/mupdf.git' -P 1 --valgrind 1 buildtest
+          python scripts/test.py ${{matrix.args}} -P 1 --valgrind 1 build test
diff --git a/.github/workflows/test_pyodide.yml b/.github/workflows/test_pyodide.yml
index ab8b652b0..24c2adb6f 100644
--- a/.github/workflows/test_pyodide.yml
+++ b/.github/workflows/test_pyodide.yml
@@ -1,57 +1,39 @@
 name: Build Pyodide wheel
 
+# Builds pyodide wheels.
+
 on:
   workflow_dispatch:
   
-    inputs:
-      PYMUPDF_SETUP_MUPDF_BUILD:
-          description: 'Value for PYMUPDF_SETUP_MUPDF_BUILD, e.g.: git:--branch master https://github.com/ArtifexSoftware/mupdf.git'
-          type: string
-          #default: 'git:--branch master https://github.com/ArtifexSoftware/mupdf.git'
-          default: '-'
-      PYMUPDF_SETUP_PY_LIMITED_API:
-        type: string
-        default: '1'
-  
   schedule:
     - cron: '13 5 * * *'
 
 jobs:
 
-  build_pyodide:
-    
-    name: Build pyodide wheel
+  pyodide:
+    name: pyodide
     runs-on: ubuntu-latest
-    
     strategy:
       matrix:
-        # Python version needs to match emsdk.
-        python-version: ["3.12"]
-
-      # Avoid cancelling of all runs after a single failure.
+        args: [
+            '',
+            '-m "git:--branch master https://github.com/ArtifexSoftware/mupdf"', 
+            '-m "git:--branch 1.26.x https://github.com/ArtifexSoftware/mupdf"',
+            ]
       fail-fast: false
     
     steps:
-
       - uses: actions/checkout@v4
-
       - uses: actions/setup-python@v5
         with:
-          python-version: ${{ matrix.python-version }}
-
-      - name: build_pyodide_wheel
-        env:
-            inputs_sdist: 0
-            inputs_PYMUPDF_SETUP_MUPDF_BUILD: ${{inputs.PYMUPDF_SETUP_MUPDF_BUILD}}
-            PYMUPDF_SETUP_PY_LIMITED_API: ${{inputs.PYMUPDF_SETUP_PY_LIMITED_API}}
-            inputs_wheels_default: 0
-            inputs_wheels_linux_pyodide: 1
+          python-version: 3.12
+      
+      - name: pyodide
         run:
-          python scripts/gh_release.py build
-
-
-      # Upload generated wheels, to be accessible from github Actions page.
-      #
-      - uses: actions/upload-artifact@v4
-        with:
-          path: ./wheelhouse/*.whl
+          python scripts/test.py ${{matrix.args}} pyodide
+      
+      # We do not use upload-artifact@v4 because it fails due to us creating
+      # identically-named wheels.
+      #- uses: actions/upload-artifact@v4
+      #  with:
+      #    path: ./wheelhouse/*.whl
diff --git a/scripts/test.py b/scripts/test.py
index 973a404b5..32e5da997 100755
--- a/scripts/test.py
+++ b/scripts/test.py
@@ -144,6 +144,9 @@
         [This simply sSets $PYMUPDF_SETUP_PY_LIMITED_API, which is used by
         PyMuPDF/setup.py.]
     
+    --show-args:
+        Show sys.argv and exit. For debugging.
+    
     --sync-paths
         Do not run anything, instead write required files/directories/checkouts
         to stdout, one per line. This is to help with automated running on
@@ -278,6 +281,7 @@ def main(argv):
     pyodide_build_version = None
     pytest_options = ''
     pytest_prefix = None
+    show_args = False
     show_help = False
     sync_paths = False
     system_site_packages = False
@@ -388,6 +392,8 @@ def main(argv):
             assert _value in ('0', '1'), f'`-s` must be followed by `0` or `1`, not {_value=}.'
             env_extra['PYMUPDF_SETUP_PY_LIMITED_API'] = _value
         
+        elif arg == '--show-args':
+            show_args = 1
         elif arg == '--sync-paths':
             sync_paths = True
         
@@ -439,6 +445,12 @@ def main(argv):
         print(__doc__)
         return
     
+    if show_args:
+        print(f'sys.argv ({len(sys.argv)}):')
+        for arg in sys.argv:
+            print(f'    {arg!r}')
+        return
+    
     if os_names:
         if platform.system().lower() not in os_names:
             log(f'Not running because {platform.system().lower()=} not in {os_names=}')
@@ -905,7 +917,7 @@ def getmtime(path):
         for test_name in test_names:
             pytest_arg += f' {pymupdf_dir_rel}/{test_name}'
     else:
-        pytest_arg += f' {pymupdf_dir_rel}'
+        pytest_arg += f' {pymupdf_dir_rel}/tests'
     python = gh_release.relpath(sys.executable)
     log('Running tests with tests/run_compound.py and pytest.')
     
@@ -940,7 +952,7 @@ def getmtime(path):
         command += (
                     f' valgrind'
                     f' --suppressions={pymupdf_dir_abs}/valgrind.supp'
-                    f' --trace-children=yes'
+                    f' --trace-children=no'
                     f' --num-callers=20'
                     f' --error-exitcode=100'
                     f' --errors-for-leak-kinds=none'
@@ -952,7 +964,7 @@ def getmtime(path):
         command = (
                 f' valgrind'
                 f' --tool=helgrind'
-                f' --trace-children=yes'
+                f' --trace-children=no'
                 f' --num-callers=20'
                 f' --error-exitcode=100'
                 f' --fullpath-after='