diff --git a/src/pacroller/config.py b/src/pacroller/config.py
index 21ae778..04aa05a 100644
--- a/src/pacroller/config.py
+++ b/src/pacroller/config.py
@@ -1,8 +1,12 @@
 import json
 from pathlib import Path
+import sys
+import importlib.util
+from typing import Any
 
 CONFIG_DIR = Path('/etc/pacroller')
 CONFIG_FILE = 'config.json'
+F_KNOWN_OUTPUT_OVERRIDE = 'known_output_override.py'
 LIB_DIR = Path('/var/lib/pacroller')
 DB_FILE = 'db'
 PACMAN_CONFIG = '/etc/pacman.conf'
@@ -16,6 +20,17 @@ if (cfg := (CONFIG_DIR / CONFIG_FILE)).exists():
 else:
     _config = dict()
 
+def _import_module(fpath: str) -> Any:
+    spec = importlib.util.spec_from_file_location(fpath.removesuffix('.py').replace('/', '.'), fpath)
+    mod = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(mod)
+    return mod
+if (_komf := (CONFIG_DIR / F_KNOWN_OUTPUT_OVERRIDE)).exists():
+    _kom = _import_module(str(_komf.resolve()))
+    KNOWN_OUTPUT_OVERRIDE = (_kom.KNOWN_HOOK_OUTPUT, _kom.KNOWN_PACKAGE_OUTPUT)
+else:
+    KNOWN_OUTPUT_OVERRIDE = (dict(), dict())
+
 TIMEOUT = int(_config.get('timeout', 300))
 UPGRADE_TIMEOUT = int(_config.get('upgrade_timeout', 3600))
 NETWORK_RETRY = int(_config.get('network_retry', 5))
diff --git a/src/pacroller/known_output.py b/src/pacroller/known_output.py
index 3377e9c..65fac4e 100644
--- a/src/pacroller/known_output.py
+++ b/src/pacroller/known_output.py
@@ -1,3 +1,6 @@
+from pacroller.config import KNOWN_OUTPUT_OVERRIDE
+KNOWN_HOOK_OUTPUT_OVERRIDE, KNOWN_PACKAGE_OUTPUT_OVERRIDE = KNOWN_OUTPUT_OVERRIDE
+
 KNOWN_HOOK_OUTPUT = {
     '': [],
     '20-systemd-sysusers.hook': [
@@ -15,7 +18,8 @@ KNOWN_HOOK_OUTPUT = {
         r'==> Creating (?:.+)-compressed initcpio image: .+',
         r'==> Image generation successful.*',
         r'[ ]+-> .+',
-    ]
+    ],
+    **KNOWN_HOOK_OUTPUT_OVERRIDE
 }
 
 _keyring_output = [
@@ -46,4 +50,5 @@ KNOWN_PACKAGE_OUTPUT = {
         r'Generation complete\.',
         r'  .*_.*\.\.\. done',
     ],
+    **KNOWN_PACKAGE_OUTPUT_OVERRIDE
 }
diff --git a/src/pacroller/known_output_override.py b/src/pacroller/known_output_override.py
new file mode 100644
index 0000000..f5802f8
--- /dev/null
+++ b/src/pacroller/known_output_override.py
@@ -0,0 +1,7 @@
+KNOWN_HOOK_OUTPUT = {
+    'example.hook': [],
+}
+
+KNOWN_PACKAGE_OUTPUT = {
+    'example-package': [],
+}