a MD notebook like Athens Research (another open collab project that makes a bi-directional linking markdown notebook, they even call it a Memex but their focus is more on the notebook and research side than on the data collection and annotation end that WorldBrain is focused on See here for AthensResearch/Athens vision: https://github.com/athensresearch/athens/blob/master/VISION.md 6 roadmap/mindmap: https://whimsical.com/TCeXP1dpRkdT8rpMvYci2P 4 notion: https://www.notion.so/Athens-67e1c6068cb449ff935d10e882fd9b05 1 they use clojurescript and datascript (which I have worked with professionally in the past, it is ideal for the backlinking notes graph problem they solve and is the same tech behind Roam which is closed-source software they are aiming to provide and opensource alternative for)