the problems with the original implementation was mostly around error
handling. sources had to be tracked manually and provided to each
incremental output. the `hasArtifact` check was frequently forgotten.
this has been re-abstracted through `incr.work()`, which is given an
`io` object. all fs reads and module loads go through this interface,
which allows the sources to be properly tracked, even if it throws.
closes#12
it was weird. i pressed delete on a subfolder, i think one of the
pages.off folders that i was using. and then, suddenly, nvim on windows
7 decided to delete every file in the directory. they weren't shred off
the space time continuum, but just marked deleted. i had to pay $80 to
get access to a software that could see them. bleh!
just seeing all my work, a little over a week, was pretty heart
shattering. but i remembered that long ago, a close friend said i could
call them whenever i was feeling sad. i finally took them up on that
offer. the first time i've ever called someone for emotional support.
but it's ok. i got it back. and the site framework is better than ever.
i'm gonna commit and push more often. the repo is private anyways.
