@oantolin@mathstodon.xyz An #emacs example: (embark-define-regexp-target bug "bug#\\([0-9]+\\)" url (concat "https://debbugs.gnu.org/cgi/bugreport.cgi?bug=" (match-string 1))) I don't have many other good examples. For most link types I prefer the uniform Org link prefix syntax, e.g., `geo:...` for #osm links, since this is already very little syntax. Did you try to define a PascalCase Embark target? @chiply@fosstodon.org