Hi I am trying to install Plasma Mobile on a librem5 using the instructions in https://developer.puri.sm/Librem5/Development_Environment/Boards/HowTo/Install_Plasma_Mobile.html#devkit-howto-install-plasma-mobile
However when running sudo apt update
I get a 404 error for https://repo.kaidan.im/debpm
Output
Hit:1 http://repo.pureos.net/pureos byzantium InRelease
Hit:2 http://repo.pureos.net/pureos byzantium-updates InRelease
Hit:3 http://repo.pureos.net/pureos byzantium-security InRelease
Ign:4 https://repo.kaidan.im/debpm buster InRelease
Err:5 https://repo.kaidan.im/debpm buster Release
404 Not Found [IP: 159.69.197.64 443]
Reading package lists… Done
E: The repository ‘https://repo.kaidan.im/debpm buster 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.