Thank you for your interest in fman!
Here's how to install fman on Ubuntu:
Install fman's GPG key:
wget -q -O - https://download.fman.io/rpm/public.gpg | sudo gpg --dearmor -o /usr/share/keyrings/fman-keyring.gpg
Add fman's repository:
echo "deb [signed-by=/usr/share/keyrings/fman-keyring.gpg] https://fman.io/updates/ubuntu/ stable main" | sudo tee /etc/apt/sources.list.d/fman.list
Update apt sources:
sudo apt update
Finally, you can install fman via:
sudo apt install fman