Index: org/README.org
===================================================================
--- org/README.org	(revision 9951793d264049f6db3d966365bfe3782b41e43f)
+++ org/README.org	(revision b00fbbb7c128e153fa072721cc75822dca24a6fa)
@@ -7,4 +7,6 @@
 * Installation
 
+** Standard pip install (not tested on all platforms)
+
 #+BEGIN_SRC shell
 git clone http://gitlab.kid.local/kidzg/ammosreader.git
@@ -13,13 +15,18 @@
 #+END_SRC
 
+** Using the guix functional package manager
+
+First subscribe to the GUIX oai channel (see Chapter Add channel to system) in
+https://gitlab.kid.local/kidzg/guix-deployment/-/blob/master/DevOps.org)
+
+Then install using the guix
+
+#+BEGIN_SRC shell
+guix package -i python-ammosreader
+#+END_SRC
+
 * Usage
 
-The sample_scripts subdirectory contains multiple scripts.
-
-** audio_reader.py
-
-#+BEGIN_SRC shell
-python3 audio_reader.py 'path_to_ammos_file'
-#+END_SRC
+There are two scripts, which demonstrate the usage of the ammosreader package.
 
 ** iqdw_reader.py
@@ -34,2 +41,21 @@
 python3 pdw_reader.py 'path_to_pdw_file'
 #+END_SRC
+
+To minimize depencencies of the core package other scripts (audio_reader, ammos_viewer)
+are now stored in separate packages. 
+
+* Logging
+
+If you use ammosreader in your own scripts a logger can be imported and used as follows:
+
+#+BEGIN_SRC python
+from ammosreader import logger
+logger.warning("Put your warning here")
+#+END_SRC
+
+The name of the logfile is ammos.log
+The logger uses the directory stored in the AMMOS_LOG_DIR environment variable.
+If this variable is not set, /tmp is used as default.
+If the logfile is not writable, the standard logger config is used and
+the logs go directly to console (tty).
+(see ammos_logging.conf file in this repository)
