diff --git a/examples/meshtastic/readme-usage.md b/examples/meshtastic/readme-usage.md
index 7343967..2d75867 100644
--- a/examples/meshtastic/readme-usage.md
+++ b/examples/meshtastic/readme-usage.md
@@ -58,6 +58,8 @@ Group
 Tapping on group (in **Messages**), you'll see the list of all persons. Every
 person is associated to a specific radio. This view is populated automatically.
 
+Choose 'Broadcast' (on top) to send a message to every person in the group.
+
 You can set a name to every person associated to a radio, which defaults to
 'Anonym': a press-and-hold on the name will enter edit mode.
 
diff --git a/examples/meshtastic/readme.md b/examples/meshtastic/readme.md
index 2d64a4e..41afa2c 100644
--- a/examples/meshtastic/readme.md
+++ b/examples/meshtastic/readme.md
@@ -4,7 +4,8 @@ Info
 
 Please note that this is WIP/experimental.
 
-Currently the app can only send direct messages between the radios.
+The app can either send direct messages between the radios, or broadcast
+messages (received by all radios).
 
 It's basically meant to be used in an emergency situation, where internet is
 not available, in order to communicate with short text messages. This kind of
diff --git a/readme-build.md b/readme-build.md
index 27517c3..f28b5b9 100644
--- a/readme-build.md
+++ b/readme-build.md
@@ -24,8 +24,6 @@ wipe off the whole example and start over.
 Build executable
 ----------------
 
-Currently still using qmake, will eventually be ported to CMake.
-
 You probably want to create an alias for qmake, like:
 ```
 alias qmake='<path-to-qt>/<compiler>/bin/qmake'
@@ -42,6 +40,11 @@ $ make -j4
 $ sudo make install
 ```
 
+On Unix systems you may need to create the following link:
+```
+sudo ln -s /usr/local/lib/libecl.so.23.9 /usr/lib/libecl.so.23.9
+```
+
 
 Build library
 -------------