In Ubuntu 20.04, when I type:
sudo apt-get install sagemath sagemath-jupyter sagemath-doc-en
”Package sagemath is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source.
E: Package ‘sagemath’ has no installation candidate
E: Unable to locate package sagemath-jupyter
E: Unable to locate package sagemath-doc-en”
It appears the PPA is no longer maintained. Am I forced to go through the hassle of getting the binary and then all its dependencies or am I missing something obvious? I feel dumb.