x86_64 and arm64
Note: Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
In a console enter:
echo 'deb http://download.opensuse.org/repositories/home:/thindil/xUbuntu_21.10/ /' | sudo tee /etc/apt/sources.list.d/home:thindil.list curl -fsSL https://download.opensuse.org/repositories/home:thindil/xUbuntu_21.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_thindil.gpg > /dev/null sudo apt update
You can also skip this step and download the selected package(s) directory, but then you will not have option to obtain automatically updates to them.