When I add any software to my Whonix package manager, I get the following error:
W: GPG error: [url] default InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY [letters/numbers of key]
Did you add a repository? Then you messed that up and did it incomplete.
Not a Whonix issue.
Yes. When I follow the guides from the software devs, it works on other distros but not Whonix.
For example Element,
Debian / Ubuntu x86_64 / aarch64
sudo apt install -y wget apt-transport-https
sudo wget -O /usr/share/keyrings/element-io-archive-keyring.gpg https://packages.element.io/debian/element-io-archive-keyring.gpg
echo “deb [signed-by=/usr/share/keyrings/element-io-archive-keyring.gpg] https://packages.element.io/debian/ default main” | sudo tee /etc/apt/sources.list.d/element-io.list
sudo apt update
sudo apt install element-desktop