[egze]

This is nice. Can it be done with a browser extension only, without a web service? (to make it work for private repos)

[mike-cardwell]

If you try to view a file in a private repo, it asks you to "sign in with github", which presumably gives them access to read your code so that they can show you this UI.

[gamanoid]

Here's his tweet where he links to them: https://twitter.com/pomber/status/1093600702071537664