I just automated my creating stars on Github to syndicate that intent and data (by PESOS) back to my website as bookmarks. Here’s an example on my site.
This is done using a variation of Using IFTTT to syndicate (PESOS) content from social services to WordPress using Micropub.
As part of this I used the feed pattern https://github.com/{{username}}.atom to input a feed which I’m filtering with my username and the word “starred” to pull out the correct items to syndicate.
I couldn’t find a permalink URL for the star itself, so I’m adding a syndication link that points to the page of “stargazers” for the individual repo that I’m bookmarking. 
While GitHub calls these stars and I might have mapped them to “likes” on my website, I’ve always thought of my intent as more of a bookmark. In practice I often use my stars as bookmarks for things I want to come back to visit on their site anyway. Since it’s my website and I have the control, I get to choose.  Of course I also have the facility to create a star post kind on the site too, but the semantic difference just doesn’t warrant the work.
Now to figure out how I might extract out all of my prior data to backfill old bookmarks like this…
I’ve now got about 20 webhooks set up to pull back data out of silos like this including ones for GoodReads, GitHub, Hypothes.is, Last.fm, Spotify, Untappd, Twitter, Letterboxd, Diigo, Reading.am, Huffduffer, Google Calendar, Meetup.com, YouTube and Pocket.

Syndicated copies: