Hakyll users with many large static files which just get copied into
the compiled version may be interested in my prototype patch for
providing a symlink compiler instead of a copying-file compiler:
While my website is rather extreme, anyone with a few gigabytes of
static files might find this a worthwhile optimization to consider, as
it'll put less pressure on temporary storage space & compile faster.
(Even on SSD, it takes time to copy around a few gigabytes.)