Carsten Dominik <carsten.domi...@gmail.com> writes: >> (defconst org-file-apps-defaults-gnu ^^^^^^^^
That's a real issue. As for what defaults to use, their availability and installability that is a secondary issue altogether. If I were you, I will plug in xdg-open there, issue user-error and force the user to remedy the situation. You will hear if things don't work. Anyways what ever is done, we will be doing no worse (but only better than) the current defaults.