zettlekasten
- https://notes.andymatuschak.org/z4AX7pHAu5uUfmrq4K4zig9x8jmmF62XgaMXm?stackedNotes=z4KZ9973AoHhvM9Pj5Qrds48JXNbMEwVJmVRw&stackedNotes=z8RTzukqNLKFXzqLwx25HrUrg5E5jiziGznWB&stackedNotes=z6UDDkom8Aifg6mLdjT1sPtbMBweCmpyTwmJT
- http://luhmann.surge.sh/communicating-with-slip-boxes
- https://notes.andymatuschak.org/z4SDCZQeRo4xFEQ8H4qrSqd68ucpgE6LU155C?stackedNotes=z3SjnvsB5aR2ddsycyXofbYR7fCxo7RmKW2be&stackedNotes=z3PBVkZ2SvsAgFXkjHsycBeyS6Cw1QXf7kcD8
- https://www.liquidtext.net/
- https://github.com/xwmx/nb