diff --git a/.github/workflows/clean.yaml b/.github/workflows/clean.yaml
index e4f64b53..b3778d7f 100644
--- a/.github/workflows/clean.yaml
+++ b/.github/workflows/clean.yaml
@@ -17,13 +17,7 @@ jobs:
           ci-gpg-private-key: ${{secrets.CI_GPG_PRIVATE_KEY}}
           github-gopass-ci-token: ${{secrets.GOPASS_CI_GITHUB_TOKEN}}
 
-      - run: |
-          sudo rm /etc/apt/sources.list.d/*.list
-          sudo apt update
-          sudo apt install --yes python3-wheel
-
       - run: python3 -m pip install --user c2cciutils
-      - run: echo ~/.local/bin >> $GITHUB_PATH
 
       - name: Clean docker hub tags
         run: c2cciutils-clean
diff --git a/c2cciutils/__init__.py b/c2cciutils/__init__.py
index fc264f3b..7e608efa 100644
--- a/c2cciutils/__init__.py
+++ b/c2cciutils/__init__.py
@@ -178,16 +178,17 @@ def get_config():
         if isinstance(config.get("checks", {}).get("required_workflows", {}), dict):
             merge(
                 {
-                    "clean.yaml": {"steps": [{"runs_re": ["c2cciutils-clean$"]}]},
+                    "clean.yaml": {"steps": [{"run_re": "c2cciutils-clean$"}]},
                     "audit.yaml": {
-                        "steps": [{"runs_re": ["c2cciutils-audit --branch=.*$"], "env": "GITHUB_TOKEN"}],
+                        "steps": [{"run_re": "c2cciutils-audit --branch=.*$", "env": ["GITHUB_TOKEN"]}],
                         "strategy-fail-fast": False,
                     },
                 },
                 config.get("checks", {}).get("required_workflows", {}),
             )
     elif (
-        config["checks"]["versions"].get("rebuild", False)
+        config["checks"]["versions"]
+        and config["checks"]["versions"].get("rebuild", False)
         and len(config["checks"]["versions"]["rebuild"].get("files", [])) == 0
     ):
         config["checks"]["versions"]["rebuild"] = False
@@ -196,7 +197,7 @@ def get_config():
         required_workflows = {
             rebuild: {
                 "noif": True,
-                "steps": [{"runs_re": [r"^c2cciutils-publish .*--type.*$"]}],
+                "steps": [{"run_re": r"^c2cciutils-publish .*--type.*$"}],
                 "strategy-fail-fast": False,
             }
             for rebuild in config["checks"]["versions"]["rebuild"].get("files", ["rebuild.yaml"])
diff --git a/c2cciutils/checks.py b/c2cciutils/checks.py
index 8d1bfef0..57f50600 100644
--- a/c2cciutils/checks.py
+++ b/c2cciutils/checks.py
@@ -2,7 +2,6 @@
 
 import configparser
 import glob
-import json
 import os
 import re
 import subprocess
@@ -313,13 +312,13 @@ def required_workflows(config, full_config, args):
                     )
                     success = False
             for step_conf in conf.get("steps", []):
-                run_re = re.compile(step_conf["run_re"]) if "run_re" in conf else None
+                run_re = re.compile(step_conf["run_re"]) if "run_re" in step_conf else None
                 found = False
                 for step in job["steps"]:
                     current_ok = True
                     if run_re is not None and run_re.match(step.get("run", "")) is None:
                         current_ok = False
-                    elif "env" in conf:
+                    elif "env" in step_conf:
                         # Verify that all the env specified in the config is present in the step of
                         # the workflow
                         conf_env = set(step_conf["env"])
@@ -334,8 +333,8 @@ def required_workflows(config, full_config, args):
                 if not found:
                     error(
                         "required_workflows",
-                        "The workflow '{}', job '{}' doesn't have the step for '{}'.".format(
-                            filename, name, json.dumps(step_conf, indent=2)
+                        "The workflow '{}', job '{}' doesn't have the step for:\n{}".format(
+                            filename, name, yaml.dump(step_conf, Dumper=yaml.SafeDumper).strip()
                         ),
                         filename,
                     )
@@ -621,8 +620,10 @@ def black(config, full_config, args):
         if not args.fix:
             cmd += ["--color", "--diff"]
         cmd.append("--")
-        cmd += _get_python_files(config.get("ignore_patterns_re", []))
-        subprocess.check_call(cmd)
+        python_files = _get_python_files(config.get("ignore_patterns_re", []))
+        cmd += python_files
+        if len(python_files) > 0:
+            subprocess.check_call(cmd)
         return True
     except subprocess.CalledProcessError:
         error(
@@ -650,8 +651,10 @@ def isort(config, full_config, args):
         else:
             cmd += ["--check-only", "--diff"]
         cmd.append("--")
-        cmd += _get_python_files(config.get("ignore_patterns_re", []))
-        subprocess.check_call(cmd)
+        python_files = _get_python_files(config.get("ignore_patterns_re", []))
+        cmd += python_files
+        if len(python_files) > 0:
+            subprocess.check_call(cmd)
         return True
     except subprocess.CalledProcessError:
         error(
diff --git a/c2cciutils/scripts/clean.py b/c2cciutils/scripts/clean.py
index 9e0433d4..ab1913d8 100644
--- a/c2cciutils/scripts/clean.py
+++ b/c2cciutils/scripts/clean.py
@@ -46,8 +46,14 @@ def main() -> None:
         headers={"Content-Type": "application/json"},
         data=json.dumps(
             {
-                "username": subprocess.check_output(["gopass", "show", "gs/ci/dockerhub/username"]).decode(),
-                "password": subprocess.check_output(["gopass", "show", "gs/ci/dockerhub/password"]).decode(),
+                "username": os.environ.get(
+                    "DOCKERHUB_USERNAME",
+                    subprocess.check_output(["gopass", "show", "gs/ci/dockerhub/username"]).decode(),
+                ),
+                "password": os.environ.get(
+                    "DOCKERHUB_PASSWORD",
+                    subprocess.check_output(["gopass", "show", "gs/ci/dockerhub/password"]).decode(),
+                ),
             }
         ),
     ).json()["token"]