Hey! This url (aaron.ms/repo) can be added as a Cydia repository. It contains interesting tweaks that are generally unfinished. I don't "support" these in the way that I support my paid tweaks (such as Watchboard or Barrel). Have fun, but I can't be responsible if something happens to your device.
Earlier, I used to require everyone to add their device's UDID before they could install software from this repository. I decided to do away with that for the time being. Interestingly enough, 15362 unique devices had been added.
Have fun! - @aaronash