Bookmark Card but for Slugs

I want a simple way to use the Editor to drop in pretty bookmarks to other posts or pages on the same site. Something similar to the Bookmark Card, but limited to slugs for existing content in the CMS.

I don’t want to use the existing Bookmark Card because the formatting is baked in, and it requires a full URL which is a problem when setting up a new site on a development server. I believe creating a custom card isn’t an option at the moment either.

Is there a way to catch strings/hooks that can be written into a post, and have my template (.hbs) look for those and go grab the relevant post/page from the slug? It feels like this should be straight forward, or maybe I’m just not seeing an obvious solution. Any thoughts would be appreciated.

I’m a bit confused to exactly what you’re asking… But maybe, as a temporary fix to your issue, you could extract the HTML structure of bookmarks and modify it in the editor via HTML to what you want to have in it?