diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a535e16..38cb0de 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -4,14 +4,17 @@ name: tests
 
 on:
   push:
-    branches: [ master ]
   pull_request:
   schedule:
     - cron: '0 12 * * 0'  # run once a week on Sunday
+  # Allow to run this workflow manually from the Actions tab
+  workflow_dispatch:
 
 jobs:
   build:
     strategy:
+      # We want to see all failures:
+      fail-fast: false
       matrix:
         config:
         # [Python version, tox env]
@@ -32,7 +35,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python
-      uses: actions/setup-python@v2.1.4
+      uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.config[0] }}
     - name: Pip cache
diff --git a/.gitignore b/.gitignore
index 0aadbae..9a9e9b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,16 +10,20 @@
 .installed.cfg
 .mr.developer.cfg
 .tox/
+.vscode/
 __pycache__/
 bin/
 build/
 coverage.xml
 develop-eggs/
+develop/
 dist/
 docs/_build
 eggs/
-htmlcov/
+etc/
 lib/
 lib64
+log/
 parts/
 pyvenv.cfg
+var/
diff --git a/.meta.toml b/.meta.toml
index e6be31a..0c6365a 100644
--- a/.meta.toml
+++ b/.meta.toml
@@ -2,7 +2,7 @@
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
 [meta]
 template = "pure-python"
-commit-id = "4e9825189b9b8d18f28e7dbc63373d4baea08602"
+commit-id = "b3b903c81546d54b062adf7fafa32e06125f5ba1"
 
 [python]
 with-pypy = true
@@ -13,3 +13,11 @@ with-appveyor = false
 
 [coverage]
 fail-under = 100
+
+[tox]
+use-flake8 = true
+
+[manifest]
+additional-rules = [
+    "recursive-include src *.rst",
+    ]
diff --git a/MANIFEST.in b/MANIFEST.in
index 0676639..b184ee1 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -5,14 +5,10 @@ include *.txt
 include buildout.cfg
 include tox.ini
 
-recursive-include docs *.bat
 recursive-include docs *.py
 recursive-include docs *.rst
 recursive-include docs *.txt
 recursive-include docs Makefile
 
-recursive-include src *.pt
 recursive-include src *.py
 recursive-include src *.rst
-recursive-include src *.txt
-recursive-include src *.zcml
diff --git a/tox.ini b/tox.ini
index 7d9fc1e..bd91068 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,7 @@
 # Generated from:
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
 [tox]
+minversion = 3.18
 envlist =
     lint
     py27
@@ -19,7 +20,7 @@ usedevelop = true
 deps =
     zope.testrunner
 commands =
-    zope-testrunner --test-path=src []
+    zope-testrunner --test-path=src {posargs:-vc}
 extras =
     test
 
@@ -37,19 +38,26 @@ commands =
 
 [testenv:docs]
 basepython = python3
+skip_install = false
+# Until repoze.sphinx.autointerface supports Sphinx 4.x we cannot use it:
+deps = Sphinx < 4
 extras =
     docs
+commands_pre =
 commands =
     sphinx-build -b html -d docs/_build/doctrees docs docs/_build/html
 
 [testenv:coverage]
 basepython = python3
+allowlist_externals =
+    mkdir
 deps =
     coverage
     coverage-python-version
     zope.testrunner
 commands =
-    coverage run -m zope.testrunner --test-path=src []
+    mkdir -p {toxinidir}/parts/htmlcov
+    coverage run -m zope.testrunner --test-path=src {posargs:-vc}
     coverage html
     coverage report -m --fail-under=100
 
@@ -70,4 +78,4 @@ exclude_lines =
     raise AssertionError
 
 [coverage:html]
-directory = htmlcov
+directory = parts/htmlcov