Clickable URLs can currently only be made for HTTP(S) addresses.
We often use addresses to files/folders on local/network drives. I also use Evernote, which has its own evernote:// schema to open a note inside the app. There are other lots of apps that behave similarly, especially on mobile.
Right now, we have to copy and paste the link into a browser window for it to open. It would be ideal if we could just click on them and they would open as the browser intended.
A way to do this would be to just accept any URL that starts with {something}://