Notice: Missing Signed-By in the sources.list(5) entry

[andreaxhearts]

Notice: Missing Signed-By in the sources.list(5) entry for 'http://download.opensuse.org/repositories/home:/codestation/xUbuntu_25.04'

Not an error, just a message that will continue to show up whenever using apt.

[hiSandog]

The repository instructions could eliminate this notice by publishing a dedicated keyring file and showing a deb [signed-by=/usr/share/keyrings/…] … entry instead of relying on the global apt trust store. Switching the example to HTTPS at the same time would modernize the setup. It would help to document a migration command for users who already have the old source entry installed.