diff --git a/sudoisbot/screen/requirements.txt b/sudoisbot/screen/requirements.txt
new file mode 100644
index 0000000..f14ef30
--- /dev/null
+++ b/sudoisbot/screen/requirements.txt
@@ -0,0 +1,6 @@
+inkyphat
+pillow
+inky[rpi,fonts]
+python-dateutil
+pyzmq
+loguru
\ No newline at end of file
diff --git a/sudoisbot/screen/screen_sub.py b/sudoisbot/screen/screen_sub.py
index 18cc0c1..bae2c29 100755
--- a/sudoisbot/screen/screen_sub.py
+++ b/sudoisbot/screen/screen_sub.py
@@ -47,6 +47,11 @@
 # pip install "inky[rpi,fonts]"
 #
 # apt-get install libopenjp2-7
+#
+#
+# user needs to be in the gpio group 
+# $ ls -l /dev/gpiomem
+# crw-rw---- 1 root gpio 246, 0 Sep 15 12:49 /dev/gpiomem
 
 import argparse
 from datetime import datetime, timedelta, timezone
@@ -59,7 +64,7 @@ import zmq
 from loguru import logger
 
 logger.remove()
-logger.add("/tmp/screen_sub.log")
+logger.add("/dev/shm/screen_sub.log")
 
 try:
     from PIL import ImageFont