diff --git a/.copier-answers.yml b/.copier-answers.yml
index f871bc0af3608077642952b1169c3573db870896..ecd49f60f3ed69c7e2a29b8e6d7fc6764b2147f1 100644
--- a/.copier-answers.yml
+++ b/.copier-answers.yml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier
-_commit: v0.1.6
+_commit: v0.2.0
 _src_path: https://gitlab.softwareheritage.org/swh/devel/swh-py-template.git
 description: Software Heritage datastore scrubber
 distribution_name: swh-scrubber
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4e52b12f0332ea645f6b44e175fed9428dda2263..8e227e63d943ff7d9b5ffa4899b7bc1f8e07c035 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -45,3 +45,13 @@ repos:
         pass_filenames: false
         language: system
         types: [python]
+      - id: twine-check
+        name: twine check
+        description: call twine check when pushing an annotated release tag
+        entry: bash -c "ref=$(git describe) &&
+          [[ $ref =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]] &&
+          (python3 -m build --sdist && twine check $(ls -t dist/* | head -1)) || true"
+        pass_filenames: false
+        stages: [pre-push]
+        language: python
+        additional_dependencies: [twine, build]
diff --git a/tox.ini b/tox.ini
index 4d64639a3502596d62f57c493153216693ba3800..9a8c8bfbb30f02f281ccbe7e8121db7cdb6ab73d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,6 +7,7 @@ envlist =
   py3
 
 [testenv]
+usedevelop = true
 passenv =
   JAVA_HOME
   SWH_CASSANDRA_LOG
@@ -16,14 +17,10 @@ deps =
   pytest-cov
 commands =
   pytest --doctest-modules \
-         --rootdir {envsitepackagesdir} \
-         --cov={envsitepackagesdir}/swh/scrubber \
+         --cov=swh/scrubber \
          --cov-branch \
-         {envsitepackagesdir}/swh/scrubber \
+         swh/scrubber \
          {posargs}
-# --rootdir (with --import-mode from pytest.ini) are required to make tests
-# that depends on the test file to be a proper submodule of the swh namespace
-# after migration to PEP420 (implicit namespace).
 
 [testenv:black]
 skip_install = true