diff --git a/config/scheme.py b/config/scheme.py
index a5846ba..ee3f161 100644
--- a/config/scheme.py
+++ b/config/scheme.py
@@ -73,6 +73,9 @@ class ProfilesSection(DictScheme):
     current: str
     default: SparseProfile
 
+    def __init__(self, *kargs, allow_extra: bool = True, **kwargs):
+        super().__init__(*kargs, allow_extra=allow_extra, **kwargs)  # type: ignore[misc]
+
     @classmethod
     def transform(cls, values: Mapping[str, Any], validate: bool = True, allow_extra: bool = True, type_hints: Optional[dict[str, Any]] = None):
         results = {}
@@ -84,11 +87,11 @@ class ProfilesSection(DictScheme):
                 raise Exception(f'Unknown key {k} in profiles section (Hint: extra_keys not allowed for some reason)')
             if not isinstance(v, dict):
                 raise Exception(f'profile {v} is not a dict!')
-            results[k] = SparseProfile.fromDict(v, validate=True)
+            results[k] = SparseProfile.fromDict(v, validate=True, allow_extra=allow_extra)
         return results
 
-    def update(self, d, validate: bool = True):
-        Munch.update(self, self.transform(values=d, validate=validate))
+    def update(self, d, validate: bool = True, **kwargs):  # type: ignore[override]
+        Munch.update(self, self.transform(values=d, validate=validate, **kwargs))
 
     def __repr__(self):
         return f'{type(self)}{dict.__repr__(self.toDict())}'
@@ -103,12 +106,12 @@ class Config(DictScheme):
     profiles: ProfilesSection
 
     @classmethod
-    def fromDict(
-        cls,
-        values: Mapping[str, Any],
-        validate: bool = True,
-        allow_extra: bool = False,
-        allow_incomplete: bool = False,
+    def fromDict(  # type: ignore[override]
+            cls,
+            values: Mapping[str, Any],
+            validate: bool = True,
+            allow_extra: bool = False,
+            allow_incomplete: bool = False,
     ):
         values = dict(values)  # copy for later modification
         _vals = {}
@@ -119,7 +122,7 @@ class Config(DictScheme):
                 continue
             value = values.pop(name)
             if not isinstance(value, _class):
-                value = _class.fromDict(value, validate=validate)
+                value = _class(value, validate=validate)
             _vals[name] = value
 
         if values:
diff --git a/devices/deviceinfo.py b/devices/deviceinfo.py
index 2a86bf2..d19ee60 100644
--- a/devices/deviceinfo.py
+++ b/devices/deviceinfo.py
@@ -269,5 +269,5 @@ def parse_deviceinfo(deviceinfo_lines: list[str], device_name: str, kernel='main
     if 'arch' in info:
         arch = info['arch']
         info['arch'] = PMOS_ARCHES_OVERRIDES.get(arch, arch)  # type: ignore[arg-type]
-    dev = DeviceInfo.fromDict(info)
+    dev = DeviceInfo.fromDict(info, allow_extra=True)
     return dev
diff --git a/dictscheme.py b/dictscheme.py
index ca7c12c..46c61cc 100644
--- a/dictscheme.py
+++ b/dictscheme.py
@@ -51,8 +51,8 @@ class DictScheme(Munch):
     _strip_hidden: ClassVar[bool] = False
     _sparse: ClassVar[bool] = False
 
-    def __init__(self, d: Mapping = {}, validate: bool = True, **kwargs):
-        self.update(dict(d) | kwargs, validate=validate)
+    def __init__(self, d: Mapping = {}, validate: bool = True, allow_extra: bool = False, **kwargs):
+        self.update(dict(d) | kwargs, validate=validate, allow_extra=allow_extra)
 
     @classmethod
     def transform(
@@ -162,8 +162,8 @@ class DictScheme(Munch):
         return results
 
     @classmethod
-    def fromDict(cls, values: Mapping[str, Any], validate: bool = True):
-        return cls(d=values, validate=validate)
+    def fromDict(cls, values: Mapping[str, Any], validate: bool = True, **kwargs):
+        return cls(d=values, validate=validate, **kwargs)
 
     def toDict(
         self,
@@ -251,8 +251,8 @@ class DictScheme(Munch):
                 )
         return result
 
-    def update(self, d: Mapping[str, Any], validate: bool = True):
-        Munch.update(self, type(self).transform(d, validate=validate))
+    def update(self, d: Mapping[str, Any], validate: bool = True, allow_extra: bool = False):
+        Munch.update(self, type(self).transform(d, validate=validate, allow_extra=allow_extra))
 
     def __init_subclass__(cls):
         super().__init_subclass__()
diff --git a/distro/repo_config.py b/distro/repo_config.py
index 88092af..f5f63ab 100644
--- a/distro/repo_config.py
+++ b/distro/repo_config.py
@@ -51,8 +51,8 @@ class ReposConfigFile(DictScheme):
     _strip_hidden: ClassVar[bool] = True
     _sparse: ClassVar[bool] = True
 
-    def __init__(self, d, **kwargs):
-        super().__init__(d=d, **kwargs)
+    def __init__(self, d, *, allow_extra: bool = True, **kwargs):
+        super().__init__(d=d, allow_extra=allow_extra, **kwargs)
         self[REPOS_KEY] = self.get(REPOS_KEY, {})
         for repo_cls, defaults, repos, remote_url in [
             (RepoConfig, REPO_DEFAULTS, self.get(REPOS_KEY), d.get(REMOTEURL_KEY, None)),
@@ -66,6 +66,9 @@ class ReposConfigFile(DictScheme):
                     _repo[REMOTEURL_KEY] = remote_url
                 repos[name] = repo_cls(_repo, **kwargs)
 
+    def update(self, *kargs, allow_extra: bool = True, **kwargs):
+        return super().update(*kargs, allow_extra=allow_extra, **kwargs)  # type: ignore[misc]
+
     @staticmethod
     def parse_config(path: str) -> ReposConfigFile:
         try: