To install is easy:
Expand your microSD card partition
sudo raspi-config
sudo reboot
NOTE: for WIFI to ever work on the unit, you must have the WIFI USB dongle inserted during installation so that the install script can configure it properly.
paste in the following command after reboot.
curl -fsS https://raw.githubusercontent.com/rachelproject/rachelpiOS/master/installer.py | python
Please note that this will change the 'pi' user's password to: rachel
All default username and passwords will be rachel/rachel unless noted differently.