If a person has their web browser open on your Zettelkasten GitHub repo — even in the background — and you commit to it while they have it open it will send a system notification containing the commit message. This allows people to follow you in real-time if they so desire.
There’s no way I would put that level of notification on Twitter. It’s the very reason I keep several ZK repos rather than a monolith. People don’t want to be bombarded with all my notifications, only the ones they want. By using GitHub in this way the user can tune how much spam they want to get from me in a granular fashion.
And none of that had to be built. It already exists and is a benefit from hosting your ZK repos on GitHub. I could not be more pleased. This has saved me hundreds of hours. I really need to write this all up, make a video, then pitch for a GitHub presentation about it: GitHub for Knowledge Management with Zettelkasten