diff --git a/dockervault/cli.py b/dockervault/cli.py
index 07ac0a8..7ff0bd1 100644
--- a/dockervault/cli.py
+++ b/dockervault/cli.py
@@ -94,10 +94,6 @@ def classify_entries(
 
 
 def dedupe_entries(entries: Iterable[dict[str, Any]]) -> list[dict[str, Any]]:
-    """
-    Dedupe primært på path.
-    Første forekomst bevares.
-    """
     deduped: list[dict[str, Any]] = []
     seen: set[str] = set()
 
@@ -320,26 +316,61 @@ def run_borg(repo: str, include_paths: list[str], dry_run: bool = False) -> int:
 
 
 def parse_args(argv: list[str] | None = None) -> argparse.Namespace:
+    common = argparse.ArgumentParser(add_help=False)
+    common.add_argument("--repo", help="Borg repository path")
+    common.add_argument(
+        "--run-borg",
+        action="store_true",
+        help="Run borg create after building the backup plan",
+    )
+    common.add_argument(
+        "--dry-run",
+        action="store_true",
+        help="Show borg command without executing it",
+    )
+    common.add_argument(
+        "--automation",
+        action="store_true",
+        help="Output machine-readable JSON",
+    )
+    common.add_argument(
+        "--quiet",
+        action="store_true",
+        help="Suppress normal human-readable plan output",
+    )
+    common.add_argument(
+        "--verbose",
+        action="store_true",
+        help="Enable verbose logging",
+    )
+
     parser = argparse.ArgumentParser(
         prog="dockervault",
         description="Intelligent Docker backup discovery with Borg integration",
+        parents=[common],
     )
 
     subparsers = parser.add_subparsers(dest="command")
 
-    plan_parser = subparsers.add_parser("plan", help="Analyze a single compose file")
+    plan_parser = subparsers.add_parser(
+        "plan",
+        help="Analyze a single compose file",
+        parents=[common],
+    )
     plan_parser.add_argument("compose", help="Path to docker-compose.yml or compose.yaml")
 
-    scan_parser = subparsers.add_parser("scan", help="Scan a directory for compose files")
+    scan_parser = subparsers.add_parser(
+        "scan",
+        help="Scan a directory for compose files",
+        parents=[common],
+    )
     scan_parser.add_argument("root", help="Root directory to scan")
 
-    parser.add_argument("--repo", help="Borg repository path")
-    parser.add_argument("--run-borg", action="store_true", help="Run borg create after building the backup plan")
-    parser.add_argument("--dry-run", action="store_true", help="Show borg command without executing it")
-    parser.add_argument("--automation", action="store_true", help="Output machine-readable JSON")
-    parser.add_argument("--quiet", action="store_true", help="Suppress normal human-readable plan output")
-    parser.add_argument("--verbose", action="store_true", help="Enable verbose logging")
-    parser.add_argument("--version", action="version", version=f"%(prog)s {__version__}")
+    parser.add_argument(
+        "--version",
+        action="version",
+        version=f"%(prog)s {__version__}",
+    )
 
     parser.add_argument(
         "legacy_target",
@@ -349,7 +380,6 @@ def parse_args(argv: list[str] | None = None) -> argparse.Namespace:
 
     args = parser.parse_args(argv)
 
-    # legacy mode: dockervault docker-compose.yml
     if args.command is None and args.legacy_target:
         args.command = "plan"
         args.compose = args.legacy_target