My Django based wiki.
- Uses reStructuredText as markup. Chosen for easy extensibility
- LaTeX for beautiful printing [WIP]
- TikZ for beautiful drawing
- MathJax for beautiful browsing
- Some Mathplotlib functionality too...
- Simple HTML/CSS structure with an eye to mobile
- Unobtrusive full screen editor
- Backend data stored as simple text files --- if you want, use some version control system to capture history