From RCN on the eewiki

# commands from https://www.digikey.com/eewiki/display/linuxonarm/FLIR+Lepton+on+BeagleBone+Black+and+Green

mkdir -p /home/debian/.config/openbox/
echo "feh --bg-scale /opt/scripts/images/beaglebg.jpg" > /home/debian/.config/openbox/autostart
echo "/home/debian/LeptonModule/software/beagleboneblack_video/bbb &" >> /home/debian/.config/openbox/autostart