diff --git a/.vscode/settings.json b/.vscode/settings.json
index 0d15acf1..5f97c7fc 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -23,7 +23,6 @@
         "terminal.ansiBrightWhite": "#ffffff",
     },
     "python.testing.pytestEnabled": false,
-    "python.testing.nosetestsEnabled": false,
     "python.testing.unittestEnabled": true,
     "python.testing.unittestArgs": [
         "-v",
@@ -35,18 +34,40 @@
     "python.linting.pylintEnabled": true,
     "python.linting.flake8Enabled": true,
     "python.linting.banditEnabled": true,
+    "python.linting.mypyEnabled": true,
+    "python.linting.mypyArgs": [
+        "--ignore-missing-imports",
+        "--follow-imports=silent",
+        "--show-column-numbers",
+        "--strict"
+    ],
     "python.linting.flake8Args": [
         "--max-line-length=120",
-        "--ignore=E722,F405,E203,W503,W293,E402",
+        "--ignore=E722,F405,E203,W503,W293,E402,E501,E128",
     ],
     "python.linting.banditArgs": [
         "--ignore=B104"
     ],
+    "python.linting.pylintArgs": [
+        "--disable=missing-module-docstring",
+        "--disable=missing-class-docstring",
+        "--disable=missing-function-docstring",
+        "--disable=wrong-import-position",
+        "--disable=raise-missing-from",
+        "--disable=bare-except",
+        "--disable=invalid-name",
+        "--disable=line-too-long",
+        "--disable=consider-using-f-string"
+    ],
+    // python3 -m isort --py=27 --profile=black copyparty/
     "python.formatting.provider": "black",
     "editor.formatOnSave": true,
     "[html]": {
         "editor.formatOnSave": false,
     },
+    "[css]": {
+        "editor.formatOnSave": false,
+    },
     "files.associations": {
         "*.makefile": "makefile"
     },
diff --git a/copyparty/fsutil.py b/copyparty/fsutil.py
index 88b33ef8..39f44418 100644
--- a/copyparty/fsutil.py
+++ b/copyparty/fsutil.py
@@ -2,12 +2,12 @@
 from __future__ import print_function, unicode_literals
 
 import ctypes
-import time
 import re
+import time
 
 from .__init__ import ANYWIN, MACOS
-from .util import min_ex, chkcmd
-from .authsrv import VFS, AXS
+from .authsrv import AXS, VFS
+from .util import chkcmd, min_ex
 
 try:
     from typing import Optional, Union
@@ -117,7 +117,7 @@ class Fstab(object):
     def get_w32(self, path: str):
         # list mountpoints: fsutil fsinfo drives
 
-        from ctypes.wintypes import LPCWSTR, LPWSTR, DWORD, LPDWORD, BOOL, MAX_PATH
+        from ctypes.wintypes import BOOL, DWORD, LPCWSTR, LPDWORD, LPWSTR, MAX_PATH
 
         def echk(rc, fun, args):
             if not rc:
diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index a0d5d566..662e4465 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -2065,7 +2065,7 @@ class HttpCli(object):
             for v in self.rvol:
                 d1, d2 = v.rsplit("/", 1) if "/" in v else ["", v]
                 if d1 == top:
-                    vfs_virt[d2] = vn  # typechk, value never read
+                    vfs_virt[d2] = self.asrv.vfs  # typechk, value never read
 
         dirs = []
 
diff --git a/copyparty/up2k.py b/copyparty/up2k.py
index 3eac983d..8e6f4ff2 100644
--- a/copyparty/up2k.py
+++ b/copyparty/up2k.py
@@ -21,8 +21,8 @@ from queue import Queue
 from .__init__ import ANYWIN, PY2, TYPE_CHECKING, WINDOWS
 from .authsrv import LEELOO_DALLAS, VFS, AuthSrv
 from .bos import bos
-from .mtag import MParser, MTag
 from .fsutil import Fstab
+from .mtag import MParser, MTag
 from .util import (
     HAVE_SQLITE3,
     SYMTIME,
diff --git a/copyparty/util.py b/copyparty/util.py
index d626d760..1177fb5c 100644
--- a/copyparty/util.py
+++ b/copyparty/util.py
@@ -1697,7 +1697,9 @@ def termsize() -> tuple[int, int]:
 
     def ioctl_GWINSZ(fd):
         try:
-            import fcntl, termios, struct
+            import fcntl
+            import struct
+            import termios
 
             cr = struct.unpack("hh", fcntl.ioctl(fd, termios.TIOCGWINSZ, "1234"))
         except:
diff --git a/scripts/deps-docker/Dockerfile b/scripts/deps-docker/Dockerfile
index 9b15fd4d..7656faf9 100644
--- a/scripts/deps-docker/Dockerfile
+++ b/scripts/deps-docker/Dockerfile
@@ -1,10 +1,10 @@
-FROM    alpine:3.15
+FROM    alpine:3.16
 WORKDIR /z
 ENV     ver_asmcrypto=5b994303a9d3e27e0915f72a10b6c2c51535a4dc \
         ver_hashwasm=4.9.0 \
-        ver_marked=4.0.16 \
+        ver_marked=4.0.17 \
         ver_mde=2.16.1 \
-        ver_codemirror=5.65.4 \
+        ver_codemirror=5.65.5 \
         ver_fontawesome=5.13.0 \
         ver_zopfli=1.0.3
 
@@ -32,7 +32,7 @@ RUN     mkdir -p /z/dist/no-pk \
             && npm install \
             && npm i grunt uglify-js -g ) \
         && (tar -xf codemirror.tgz \
-            && cd CodeMirror-$ver_codemirror \
+            && cd codemirror5-$ver_codemirror \
             && npm install ) \
         && (tar -xf mde.tgz \
             && cd easy-markdown-editor* \
@@ -87,7 +87,7 @@ RUN     cd marked-$ver_marked \
 
 # build codemirror
 COPY    codemirror.patch /z/
-RUN     cd CodeMirror-$ver_codemirror \
+RUN     cd codemirror5-$ver_codemirror \
         && patch -p1 < /z/codemirror.patch \
         && sed -ri '/^var urlRE = /d' mode/gfm/gfm.js \
         && npm run build \
diff --git a/scripts/deps-docker/Makefile b/scripts/deps-docker/Makefile
index 6e919fda..e24eee9f 100644
--- a/scripts/deps-docker/Makefile
+++ b/scripts/deps-docker/Makefile
@@ -23,4 +23,4 @@ purge:
 
 sh:
 	@printf "\n\033[1;31mopening a shell in the most recently created docker image\033[0m\n"
-	docker run --rm -it `docker images -aq | head -n 1` /bin/bash
+	docker run --rm -it `docker images -aq | head -n 1` /bin/ash
diff --git a/scripts/deps-docker/marked-ln.patch b/scripts/deps-docker/marked-ln.patch
index 01e326a1..9a60a8ea 100644
--- a/scripts/deps-docker/marked-ln.patch
+++ b/scripts/deps-docker/marked-ln.patch
@@ -1,5 +1,5 @@
 diff --git a/src/Lexer.js b/src/Lexer.js
-adds linetracking to marked.js v4.0.6;
+adds linetracking to marked.js v4.0.17;
 add data-ln="%d" to most tags, %d is the source markdown line
 --- a/src/Lexer.js
 +++ b/src/Lexer.js