no, he means file i/o saving, like SC2 banks
Arhowk, currently, the latest in local saving is my syncing library in the JASS submissions section. It needs one more optimization update to absolutely maximize the sync speed. Afterwards, the File I/O thing can be updated and local saving can be completed.
Local saving is done in 2 parts, the syncing and the reading/writing. I haven't rewritten the reading/writing part yet to use the latest techniques (the Thread lib), so you could beat me to it if you like ; ). You can also update the sync lib to run across 90 or w/e gamecaches (so that they use exactly 1 char) and use a buffer. This would drastically increase the speed and is the update I'm planning to do some day (who knows when).
I don't recommend you just try to submit your own standalone as its sync rate likely won't be able to compete with what's in the JASS section, so it'd just end up getting rejected for being inferior to what's already been done, heh.