Install Unison Linux

# Install Unison
sudo apt install unison

# Install Fsmonitor
sudo pip install fsmonitor

# /etc/systemd/system/unison@.service
# Starts unison with the .prf-config of your choice
# Create a unison .prf-config such as
# https://gist.github.com/thunfischbrot/3efbd4a87785615a61e4f5fd875f2699
# Set the HOME Environment variable below to the user's home dir
# Reload systemd services
# systemctl daemon-reload
# Start service with name of your .prf
# systemctl start unison@20Documents
# systemctl status
# If it is working, add to startup
# systemctl enable unison@20Documents

[Unit]
Description=Unison File Synchronization
After=network.target

[Service]
Type=simple
Environment="PATH=/usr/local/bin:/usr/bin"
# Change to home directory of your user in which the .unison/*.prf files are located
Environment="HOME=/root"
ExecStart=/usr/local/bin/unison %i
Restart=always
RestartSec=7

[Install]
WantedBy=default.target