diff --git a/src/python/jw/pkg/App.py b/src/python/jw/pkg/App.py
index 95cd2b85..cc57a6a8 100644
--- a/src/python/jw/pkg/App.py
+++ b/src/python/jw/pkg/App.py
@@ -10,7 +10,7 @@ import sys
 
 from enum import Enum, auto
 from functools import cache
-from typing import override, TYPE_CHECKING
+from typing import Any, override, TYPE_CHECKING
 
 from .lib.App import App as Base
 from .lib.Distro import Distro
@@ -19,6 +19,7 @@ from .lib.ProjectConf import ProjectConf
 
 if TYPE_CHECKING:
     import argparse
+    from argparse import ArgumentParser
 
     from typing import TypeAlias
 
@@ -36,10 +37,10 @@ if TYPE_CHECKING:
 
 class ResultCache(object):
 
-    def __init__(self):
-        self.__cache = {}
+    def __init__(self) -> None:
+        self.__cache: dict[str, Any] = {}
 
-    def run(self, func, args):
+    def run(self, func, args: list[Any]) -> object:
         d = self.__cache
         depth = 0
         keys = [func.__name__] + args
@@ -200,7 +201,15 @@ class App(Base):
             return None
 
     def __get_project_refs_cached(
-        self, buf, visited, spec, section, key, add_self, scope, names_only
+        self,
+        buf: list[str],
+        visited: set[str],
+        spec: str,
+        section: str,
+        key: str,
+        add_self: bool,
+        scope: Scope,
+        names_only: bool,
     ):
         return self.__res_cache.run(
             self.__get_project_refs,
@@ -381,7 +390,7 @@ class App(Base):
             self.__exec_context = None
 
     @override
-    def _add_arguments(self, parser) -> None:
+    def _add_arguments(self, parser: ArgumentParser) -> None:
         super()._add_arguments(parser)
         parser.add_argument('-t', '--topdir', default = None, help = 'Project Path')
         parser.add_argument(
@@ -537,7 +546,7 @@ class App(Base):
     def tmpl_dir(self, name: str) -> str | None:
         return self.find_dir(name, ['/tmpl'], ['/opt/' + name + '/share/tmpl'])
 
-    def strip_module_from_spec(self, mod):
+    def strip_module_from_spec(self, mod: str) -> str:
         return re.sub(r'-dev$|-devel$|-run$', '', re.split('([=><]+)', mod)[0].strip())
 
     @cache
diff --git a/src/python/jw/pkg/lib/App.py b/src/python/jw/pkg/lib/App.py
index 881f6b69..a2357ec0 100644
--- a/src/python/jw/pkg/lib/App.py
+++ b/src/python/jw/pkg/lib/App.py
@@ -14,14 +14,14 @@ from .Types import LoadTypes
 from .util import pretty_cmd
 
 if TYPE_CHECKING:
-    from collections.abc import Awaitable
+    from collections.abc import Awaitable, Collection
     from typing import TypeVar
 
     T = TypeVar('T')
 
 class App:  # export
 
-    def _add_arguments(self, parser):
+    def _add_arguments(self, parser: ArgumentParser) -> None:
         self.__parser.add_argument(
             '--log-flags', help = 'Log flags', default = self.__default_log_flags
         )
@@ -51,7 +51,7 @@ class App:  # export
         eloop: None = None,
     ) -> None:
 
-        def add_cmd_to_parser(cmd, parsers):
+        def add_cmd_to_parser(cmd: AbstractCmd, parsers: Any) -> ArgumentParser:
             parser = parsers.add_parser(
                 cmd.name,
                 help = cmd.help,
@@ -67,7 +67,7 @@ class App:  # export
         def add_cmds_to_parser(
             parent: AbstractCmd | App,
             parser: ArgumentParser,
-            cmds,
+            cmds: Collection[AbstractCmd],
             all = False
         ) -> None:
             if not cmds:
diff --git a/src/python/jw/pkg/lib/ec/Local.py b/src/python/jw/pkg/lib/ec/Local.py
index 08630e16..243a969a 100644
--- a/src/python/jw/pkg/lib/ec/Local.py
+++ b/src/python/jw/pkg/lib/ec/Local.py
@@ -14,6 +14,8 @@ from ..ExecContext import ExecContext as Base
 from ..log import ERR, NOTICE, log
 
 if TYPE_CHECKING:
+    from typing import Any
+
     from ..Uri import Uri
 
 class Local(Base):
@@ -37,7 +39,7 @@ class Local(Base):
         log_prefix: str,
     ) -> Result:
 
-        def __log(prio, *args, verbose = verbose):
+        def __log(prio: int, *args: Any, verbose: bool = verbose) -> None:
             if verbose:
                 log(prio, log_prefix, *args)
 
diff --git a/src/python/jw/pkg/lib/ec/ssh/Exec.py b/src/python/jw/pkg/lib/ec/ssh/Exec.py
index e0969e29..17bd35e4 100644
--- a/src/python/jw/pkg/lib/ec/ssh/Exec.py
+++ b/src/python/jw/pkg/lib/ec/ssh/Exec.py
@@ -28,7 +28,7 @@ class Exec(Base):
         if self.__askpass is not None:
             os.remove(self.__askpass)
 
-    def __init_askpass(self):
+    def __init_askpass(self) -> None:
         if self.__askpass is None and self.password is not None:
             import sys
             import tempfile
diff --git a/src/python/jw/pkg/lib/pm/dpkg.py b/src/python/jw/pkg/lib/pm/dpkg.py
index 41596211..12b5d9e8 100644
--- a/src/python/jw/pkg/lib/pm/dpkg.py
+++ b/src/python/jw/pkg/lib/pm/dpkg.py
@@ -11,7 +11,7 @@ from ..util import run_cmd, run_sudo
 
 _meta_map: dict[str, str] | None = None
 
-def meta_map():
+def meta_map() -> dict[str, str]:
     global _meta_map
     if _meta_map is None:
         _meta_map = Package.order_tags(
diff --git a/src/python/jw/pkg/lib/pm/rpm.py b/src/python/jw/pkg/lib/pm/rpm.py
index 01995b8b..68421e81 100644
--- a/src/python/jw/pkg/lib/pm/rpm.py
+++ b/src/python/jw/pkg/lib/pm/rpm.py
@@ -11,7 +11,7 @@ if TYPE_CHECKING:
 
 _meta_map: dict[str, str] | None = None
 
-def meta_map():
+def meta_map() -> dict[str, str]:
     global _meta_map
     if _meta_map is None:
         _meta_map = Package.order_tags(