curl or wget installedsudo curl -fsSL "https://packages.openproject.com/srv/deb/opf/openproject/gpg-key.gpg" \
-o /usr/share/keyrings/openproject.gpg
sudo curl -fsSL \
"https://packages.openproject.com/srv/opf/openproject/stable/16/installer/debian/11.list" \
-o /etc/apt/sources.list.d/openproject.list
Or using wget:
sudo wget \
-O /etc/apt/sources.list.d/openproject.list \
"https://packages.openproject.com/srv/opf/openproject/stable/16/installer/debian/11.list"
sudo apt update
sudo apt install PACKAGE_NAME
Verify the repository is configured correctly:
apt-cache policy