Hats off to the #emacs people for this little nudge to #vim users from the emacs 31 changelog:

New user option 'browse-url-transform-alist'. This user option is an alist that allows transforming URLs before asking a web browser to load them. For example, it could be used like this:

(add-to-list 'browse-url-transform-alist
'("vim\\.org/.*" . "gnu.org/software/emacs/"))