SUMMARY STEPS TO REPRODUCE Based on instructions available at https://invent.kde.org/office/ghostwriter: 1. $ sudo add-apt-repository ppa:wereturtle/ppa 2. $ sudo apt update OBSERVED RESULT E: The repository 'https://ppa.launchpadcontent.net/wereturtle/ppa/ubuntu noble Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. EXPECTED RESULT Successful apt update. SOFTWARE/OS VERSIONS Linux: Ubuntu 24.04.3 LTS