I imagine that this test might be ending right around the time of tonight’s weekly dev update.
At that point I’ll “reboot” community1 as “The Bleeding Edge Community Network” (don’t take that too literally 
Its distinction will be to host the very latest builds of the SAFE network software.
The configs are here: http://91.121.173.204/configs/
I have nightly builds of the binary at the links below (they include the libsodium library):
http://91.121.173.204/amd64/safe_vault
http://91.121.173.204/armv7/safe_vault
Those are fresh builds from the repo, automatically generated late every night.
…just AMD64 and ARMV7 for now, but other platforms will soon be supported.
…or you can use the release from Testnet4:
https://github.com/maidsafe/safe_vault/releases/tag/0.9.0
Note that community1 is not running right now; please wait for the announcement.