Package 'spacemacs-theme-' is unavailable during initialization, apparently closed last month [1] but still very much an issue on an up-to-date Debian box for b

Package 'spacemacs-theme-' is unavailable during initialization, apparently closed last month [1] but still very much an issue on an up-to-date Debian box for both the master and the develop branches [1] https://github.com/syl20bnr/spacemacs/issues/4097 https://github.com/syl20bnr/spacemacs/issues/4097