Did someone manage to convince him to OSS or sell licenses to his system? Seems similar to http://fed.wiki.org/view/welcome-visitors but more dynamic and with some extra link discovery. I am trying logseq right now but the bullet-point format is a bit limiting (equally so when I compare my own freeform paper notetaking with bullet journalling).
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 . 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
