diff --git a/README.md b/README.md
index c96ccc51..f8d9e4bf 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,7 @@ turn almost any device into a file server with resumable uploads/downloads using
     * [reverse-proxy](#reverse-proxy) - running copyparty next to other websites
 * [browser support](#browser-support) - TLDR: yes
 * [client examples](#client-examples) - interact with copyparty using non-browser clients
+    * [folder sync](#folder-sync) - sync folders to/from copyparty
     * [mount as drive](#mount-as-drive) - a remote copyparty server as a local filesystem
 * [android app](#android-app) - upload to copyparty with one tap
 * [iOS shortcuts](#iOS-shortcuts) - there is no iPhone app, but
@@ -189,7 +190,7 @@ firewall-cmd --reload
   * ☑ search by name/path/date/size
   * ☑ [search by ID3-tags etc.](#searching)
 * client support
-  * ☑ [sync folder to server](https://github.com/9001/copyparty/tree/hovudstraum/bin#up2kpy)
+  * ☑ [folder sync](#folder-sync)
   * ☑ [curl-friendly](https://user-images.githubusercontent.com/241032/215322619-ea5fd606-3654-40ad-94ee-2bc058647bb2.png)
 * markdown
   * ☑ [viewer](#markdown-viewer)
@@ -1178,7 +1179,7 @@ interact with copyparty using non-browser clients
   * `(printf 'PUT / HTTP/1.1\r\n\r\n'; cat movie.mkv) >/dev/tcp/127.0.0.1/3923`
 
 * python: [up2k.py](https://github.com/9001/copyparty/blob/hovudstraum/bin/up2k.py) is a command-line up2k client [(webm)](https://ocv.me/stuff/u2cli.webm)
-  * file uploads, file-search, folder sync, autoresume of aborted/broken uploads
+  * file uploads, file-search, [folder sync](#folder-sync), autoresume of aborted/broken uploads
   * can be downloaded from copyparty: controlpanel -> connect -> [up2k.py](http://127.0.0.1:3923/.cpr/a/up2k.py)
   * see [./bin/README.md#up2kpy](bin/README.md#up2kpy)
 
@@ -1199,6 +1200,15 @@ you can provide passwords using header `PW: hunter2`, cookie `cppwd=hunter2`, ur
 NOTE: curl will not send the original filename if you use `-T` combined with url-params! Also, make sure to always leave a trailing slash in URLs unless you want to override the filename
 
 
+## folder sync
+
+sync folders to/from copyparty
+
+the commandline uploader [up2k.py](https://github.com/9001/copyparty/tree/hovudstraum/bin#up2kpy) with `--dr` is the best way to sync a folder to copyparty; verifies checksums and does files in parallel, and deletes unexpected files on the server after upload has finished which makes file-renames really cheap (it'll rename serverside and skip uploading)
+
+alternatively there is [rclone](./docs/rclone.md) which allows for bidirectional sync and is *way* more flexible (stream files straight from sftp/s3/gcs to copyparty for instance), although syncing to copyparty is about 5x slower than up2k.py if you have many small files in particular
+
+
 ## mount as drive
 
 a remote copyparty server as a local filesystem;  go to the control-panel and click `connect` to see a list of commands to do that
diff --git a/copyparty/web/svcs.html b/copyparty/web/svcs.html
index cb0d87e8..a3ab01d1 100644
--- a/copyparty/web/svcs.html
+++ b/copyparty/web/svcs.html
@@ -69,7 +69,7 @@
                 printf '%s\n' "http{{ s }}://{{ ep }}/{{ rvp }} <b>{{ pw }}</b> k" >> /etc/davfs2/secrets
                 printf '%s\n' "http{{ s }}://{{ ep }}/{{ rvp }} <b>mp</b> davfs rw,user,uid=1000,noauto 0 0" >> /etc/fstab
             </pre>
-            <p>or you can use rclone instead, which is much slower but doesn't require root:</p>
+            <p>or you can use rclone instead, which is much slower but doesn't require root (plus it keeps lastmodified on upload):</p>
             <pre>
                 rclone config create {{ aname }}-dav webdav url=http{{ s }}://{{ rip }}{{ hport }} vendor=owncloud{% if accs %} user=k pass=<b>{{ pw }}</b>{% endif %}
                 rclone mount --vfs-cache-mode writes --dir-cache-time 5s {{ aname }}-dav:{{ rvp }} <b>mp</b>
diff --git a/docs/rclone.md b/docs/rclone.md
index 75ba5bad..3c20074a 100644
--- a/docs/rclone.md
+++ b/docs/rclone.md
@@ -14,6 +14,10 @@ when server is on another machine (1gbit LAN),
 
 # creating the config file
 
+the copyparty "connect" page at `/?hc` (so for example http://127.0.0.1:3923/?hc) will generate commands to autoconfigure rclone for your server
+
+**if you prefer to configure rclone manually, continue reading:**
+
 replace `hunter2` with your password, or remove the `hunter2` lines if you allow anonymous access
 
 
@@ -62,6 +66,17 @@ rclone.exe mount --vfs-cache-mode writes --vfs-cache-max-age 5s --attr-timeout 5
 ```
 
 
+# sync folders to/from copyparty
+
+note that the up2k client [up2k.py](https://github.com/9001/copyparty/tree/hovudstraum/bin#up2kpy) (available on the "connect" page of your copyparty server) does uploads much faster and safer, but rclone is bidirectional and more ubiquitous
+
+```
+rclone sync /usr/share/icons/ cpp-rw:fds/
+```
+
+TODO: rclone bug? `--transfers=4` doesn't seem to do anything (it does one request at a time), doesn't matter if the webdav server is copyparty or rclone
+
+
 # use rclone as server too, replacing copyparty
 
 feels out of place but is too good not to mention
@@ -91,3 +106,5 @@ notably,
 * `hasOCMD5` / `hasOCSHA1` is conveniently dontcare on both ends
 
 there's a scary comment mentioning PROPSET of lastmodified which is not something we wish to support
+
+and if `vendor=owncloud` ever stops working, try `vendor=fastmail` instead