It's only for presentation. He writes in Bear on MacOS and use his script to make backlinks https://github.com/andymatuschak/Bear-Markdown-Export https://github

It's only for presentation. He writes in Bear on MacOS and use his script to make backlinks https://github.com/andymatuschak/Bear-Markdown-Export https://github.com/andymatuschak/Bear-Markdown-Export . He made a video presenting how he works, should be somewhere on YT. But if you're asking specifically about that website source code then yes, he was asked about it. He didn't publish it. There are some alternatives: https://github.com/MaggieAppleton/digital-gardeners https://github.com/MaggieAppleton/digital-gardeners