diff --git a/my/core/time.py b/my/core/time.py
index 2c642d6..9f8d958 100644
--- a/my/core/time.py
+++ b/my/core/time.py
@@ -1,5 +1,5 @@
 from functools import lru_cache
-from datetime import datetime
+from datetime import datetime, tzinfo
 
 import pytz # type: ignore
 
@@ -11,6 +11,7 @@ tz_lookup = {
 tz_lookup['UTC'] = pytz.utc # ugh. otherwise it'z Zulu...
 
 
+# TODO dammit, lru_cache interferes with mypy?
 @lru_cache(None)
-def abbr_to_timezone(abbr: str):
+def abbr_to_timezone(abbr: str) -> tzinfo:
     return tz_lookup[abbr]
diff --git a/my/google/takeout/paths.py b/my/google/takeout/paths.py
index 21d4ef3..1bc346d 100644
--- a/my/google/takeout/paths.py
+++ b/my/google/takeout/paths.py
@@ -1,22 +1,17 @@
-from typing import NamedTuple
+from dataclasses import dataclass
 from ...core.common import Paths
 
-class google(NamedTuple):
+from my.config import google as user_config
+@dataclass
+class google(user_config):
     '''
     Expects [[https://takeout.google.com][Google Takeout]] data.
     '''
     takeout_path: Paths # path/paths/glob for the takeout zips
-
 ###
 
-from my.config import google as user_config
-
-###
-# TODO: generalize the thing from my.reddit
-# i.e. config = make_config(google, user_config)
-# reveal_type(config) should be 'google'
-config = google(**{k: v for k, v in vars(user_config).items() if k in google._fields})
-###
+from ...core.cfg import make_config
+config = make_config(google)
 
 from pathlib import Path
 from typing import Optional, Iterable
diff --git a/my/twitter/archive.py b/my/twitter/archive.py
index 96a0f5a..e545cd6 100755
--- a/my/twitter/archive.py
+++ b/my/twitter/archive.py
@@ -1,6 +1,22 @@
 """
 Twitter data (uses [[https://help.twitter.com/en/managing-your-account/how-to-download-your-twitter-archive][official twitter archive export]])
 """
+from dataclasses import dataclass
+from ..core.common import Paths
+
+from my.config import twitter as user_config
+
+@dataclass
+class twitter(user_config):
+    export_path: Paths # path[s]/glob to the twitter archive takeout
+
+
+###
+
+from ..core.cfg import make_config
+config = make_config(twitter)
+
+
 from datetime import datetime
 from typing import Union, List, Dict, Set, Optional, Iterator, Any, NamedTuple
 from pathlib import Path
@@ -13,14 +29,13 @@ import pytz
 from ..common import PathIsh, get_files, LazyLogger, Json
 from ..kython import kompress
 
-from my.config import twitter as config
 
 
 logger = LazyLogger(__name__)
 
 
 def _get_export() -> Path:
-    return max(get_files(config.export_path, '*.zip'))
+    return max(get_files(config.export_path))
 
 
 Tid = str
diff --git a/my/twitter/twint.py b/my/twitter/twint.py
index 45f58fd..e31270d 100644
--- a/my/twitter/twint.py
+++ b/my/twitter/twint.py
@@ -1,24 +1,35 @@
 """
-Twitter data (tweets and favorites). Uses [[https://github.com/twintproject/twint][Twint]] data export.
+Twitter data (tweets and favorites).
 """
 
+from ..core.common import Paths
+from dataclasses import dataclass
+from my.config import twint as user_config
+
+@dataclass
+class twitter(user_config):
+    '''
+    Uses [[https://github.com/twintproject/twint][Twint]] data export.
+    '''
+    export_path: Paths # path[s]/glob to twint Sqlite database
+
+
+from ..core.cfg import make_config
+config = make_config(twitter)
+
+
 from datetime import datetime
 from typing import NamedTuple, Iterable, List
 from pathlib import Path
 
-from ..common import PathIsh, get_files, LazyLogger, Json
+from ..core.common import get_files, LazyLogger, Json
 from ..core.time import abbr_to_timezone
 
-from my.config import twint as config
-
-
 log = LazyLogger(__name__)
 
 
 def get_db_path() -> Path:
-    # TODO don't like the hardcoded extension. maybe, config should decide?
-    # or, glob only applies to directories?
-    return max(get_files(config.export_path, glob='*.db'))
+    return max(get_files(config.export_path))
 
 
 class Tweet(NamedTuple):