Trying to follow LinuxBabe’s instructions for installing the LAMP stack (Linux flavor is Debian Buster). When trying to install php7.4, I get an error for each package she lists, starting with:
E: Unable to locate package php7.4
E: Couldn’t find any package by glob ‘php7.4’
E: Couldn’t find any package by regex ‘php7.4’
And so on for each of the recommended packages. This is the same version of php specified on the NextCloud admin-manual page for installation on Linux. I double- and triple-checked the command line. What am I missing?