Debian repository - sid

The code names of Debian releases are names of characters from the film Toy Story. The unstable, development distribution is nicknamed sid, after the emotionally unstable next-door neighbour boy who destroyed toys on a regular basis.

Where do these codenames come from?

So far they have been characters taken from the movie "Toy Story" by Pixar.

• buzz (Buzz Lightyear) was the spaceman,

• rex was the tyrannosaurus,

• bo (Bo Peep) was the girl who took care of the sheep,

• hamm was the piggy bank,

• slink (Slinky Dog (R)) was the toy dog,

• potato was, of course, Mr. Potato (R),

• woody was the cowboy,

• sarge was the sergeant of the Green Plastic Army Men,

• etch was the toy blackboard (Etch-a-Sketch (R)),

• lenny was the binoculars.

• sid was the boy next door who destroyed toys.

Sid repository is dangerous, but it's really powerful for developers. Almost you can find any lib packages here.
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deb http://ftp.de.debian.org/debian sid main ##
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the gpg key:
when you run apt-get update, you will be told error about gpg key:A70DAF536070D3A1
run:
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sudo gpg --keyserver wwwkeys.eu.pgp.net --recv-keys 07DC563D1F41B907
sudo apt-key add ~/.gnupg/pubring.gpg
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From here you can find a lot of libs which are really difficult to get from those stable repositories.