diff --git a/.renovaterc.json b/.renovaterc.json
new file mode 100644
index 0000000..ff27ef5
--- /dev/null
+++ b/.renovaterc.json
@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "local>infrastructure/renovate-config"
+  ]
+}
diff --git a/README.md b/README.md
index f64716e..8803808 100644
--- a/README.md
+++ b/README.md
@@ -18,50 +18,6 @@ See `requirements.txt`
 2. Adapt `config.yml.example` to your needs and save it as `config.yml`
 3. Run `dc-ops` from the shell or from a cron job
 
-### Cron
-
-Recommended crontab usage:
-
-`*/15 * * * * python3 /opt/dc-ops/dc-ops 2>&1 | ts "\%FT\%H:\%M:\%S" >>/var/log/dc-ops.log`
-
-(do not forget logrotate)
-
-### Systemd
-
-Recommended systemd usage:
-
-```toml
-# /etc/systemd/system/dc-ops.service
-[Unit]
-Description=Run dc-ops once
-After=docker.target
-
-[Service]
-Type=simple
-WorkingDirectory=/opt/dc-ops/
-ExecStart=python3 dc-ops
-```
-
-```toml
-# /etc/systemd/system/dc-ops.timer
-[Unit]
-Description=Start dc-ops service periodically
-
-[Timer]
-Persistent=true
-OnCalendar=*:0/15
-Unit=dc-ops.service
-
-[Install]
-WantedBy=timers.target
-```
-
-Enable and start the timer:
-```
-systemctl enable dc-ops.timer
-systemctl start dc-ops.timer
-```
-
 ## Parameters
 
 See `dc-ops --help`
diff --git a/config.yml.example b/config.yml.example
index af277e7..a277ca8 100644
--- a/config.yml.example
+++ b/config.yml.example
@@ -1,4 +1,3 @@
-self-update: true # optional
 loglevdel: "INFO" # optional
 compose-opts: "--dry-run"
 stacks:
diff --git a/dc-ops b/dc-ops
index 311fe48..965bda1 100755
--- a/dc-ops
+++ b/dc-ops
@@ -5,8 +5,6 @@
 # CC-BY-SA (https://creativecommons.org/licenses/by-sa/4.0/deed.de)
 # for civil use only
 
-# pylint: disable=missing-module-docstring,invalid-name
-
 import argparse
 import logging as log
 from pathlib import Path
@@ -17,12 +15,12 @@ from lib.helper import run_subprocess, update_git_repo, do_selfupdate
 
 # read config file
 configfile = Path(__file__).with_name("config.yml")
-with configfile.open("r", encoding="utf-8") as f:
+with configfile.open("r") as f:
     cfg = yaml.safe_load(f.read())
 
 # fmt: off
 parser = argparse.ArgumentParser()
-parser.add_argument("--ignore-git-status", action="store_true", help="continue even if there are no new commits")
+parser.add_argument("--ignore-git-status", action="store_true", help="continue even if there are no new commits")  # noqa
 parser.add_argument("--loglevel", help="set loglevel (overrides config file)")
 args = parser.parse_args()
 # fmt: on
@@ -49,7 +47,7 @@ for stack in cfg["stacks"]:
 
     # header
     stackdir = stack["dir"]
-    log.info("processing: %s", stackdir)
+    log.info(f"* processing {stackdir}")
 
     # update repo and check for new commits
     if not update_git_repo(stackdir, args.ignore_git_status):
@@ -57,7 +55,6 @@ for stack in cfg["stacks"]:
 
     # run pre-command
     if "pre" in stack:
-        log.info("-> executing pre-command")
         if not run_subprocess(stack["pre"], stackdir):
             continue
 
@@ -65,7 +62,6 @@ for stack in cfg["stacks"]:
     # (or just for the directory if no compose-file defined)
     composefiles = stack.get("compose-files", ["docker-compose.yml"])
     for composefile in composefiles:
-        log.info("-> bringing up %s", composefile)
         if not run_subprocess(
             f"docker compose --file {composefile} up --detach {composeopts}",
             stackdir,
@@ -74,6 +70,5 @@ for stack in cfg["stacks"]:
 
     # run post-command
     if "post" in stack:
-        log.info("-> executing post-command")
         if not run_subprocess(stack["post"], stackdir):
             continue
diff --git a/lib/helper.py b/lib/helper.py
index 1fbe286..9eae836 100644
--- a/lib/helper.py
+++ b/lib/helper.py
@@ -1,5 +1,3 @@
-# pylint: disable=missing-module-docstring
-
 import logging as log
 import subprocess
 import sys
@@ -18,9 +16,9 @@ def do_selfupdate():
         log.error(str(e))
         return
     if pull_res.old_commit:
-        log.info("SelfUpdate: successfully updated myself - exiting")
+        log.info("selfupdate: successfully updated myself - exiting")
         sys.exit(0)
-    log.info("SelfUpdate: no updates found for myself")
+    log.info("selfupdate: no updates found for myself")
 
 
 def run_subprocess(command: str, workdir: str) -> bool:
@@ -34,9 +32,7 @@ def run_subprocess(command: str, workdir: str) -> bool:
         bool: False if subprocess fails
     """
     try:
-        log.debug(
-            subprocess.run(command.split(" "), cwd=workdir, text=True, check=False)
-        )
+        log.debug(subprocess.run(command.split(" "), cwd=workdir, text=True))
     except subprocess.CalledProcessError:
         return False
 
@@ -53,12 +49,11 @@ def update_git_repo(repo_path: str, ignore_git_status: bool) -> bool:
     Returns:
         bool: False if any step fails
     """
-
     # create repo instance if it exists
     try:
         repo = git.Repo(repo_path)
     except git.exc.NoSuchPathError:
-        log.error("-> directory not found")
+        log.error("directory not found")
         return False
 
     if not ignore_git_status:
@@ -66,19 +61,19 @@ def update_git_repo(repo_path: str, ignore_git_status: bool) -> bool:
         try:
             fetch_res = repo.remotes.origin.fetch()[0]
         except git.exc.GitCommandError as e:
-            log.error("-> %s ", str(e))
+            log.error(str(e))
             return False
 
         # check for new commits
         if not fetch_res.old_commit:
-            log.info("-> no changes - skipping")
+            log.info("no changes - skipping")
             return False
 
     # pull remote changes to local branch
     try:
-        log.info("-> %s", repo.git.pull())
+        log.info(repo.git.pull())
     except git.exc.GitCommandError as e:
-        log.error("-> %s", str(e))
+        log.error(str(e))
         return False
 
     return True