also, personalize this:
- enable extensions
- change to my css
- change relative paths.
fix various bugs:
- set the zoom level in notebook_append, not in notebook_init
- have a handly debug option for valgrind
- Significantly simpler
- Easier for me to keep up with upstream
- Alternatives:
- Comments as before
- git patches, as in the suckless community: eventually leads to
confusion about conflicting patches.
- some other option
