Earlier today I pushed a change that split this code up into multiple
repos, but that has proved to complicate things too much. So we're
back to a single repo, except the individual submodules are better
separated than they were before.
The README files need updating again; I will push them out soon.
Aside from splitting out the different modules, the sound code has
moved from from anki to aqt.
The switch to the new timezone code may shift some users back or forth
a day, so it'd be better to have this in place prior to making the
new scheduler the default.
