texlive-20190410-texmf.tar.xz again and again

[zimoun]

Dear,

I am often annoyed because when I run "guix upgrade", Guix
downloads again the heavy texlive-20190410-texmf.tar.xz if I have
forgotten to protect it from "guix gc" using the trick, e.g.,

  https://lists.gnu.org/archive/html/help-guix/2020-02/msg00110.html

What could be a more general solution independent of the trick?


All the best,
simon