All the source for my ComputerCraft Package Manager.
Just open up your Computer/Turtle and type in the following commands:
pastebin get 1xc1NGDQ cpm
cpm
Or if you are using a recent version of ComputerCraft, you can use:
pastebin run 1xc1NGDQ
If the pastebin command isn't available at all, you will have to type in the µNetboot manually.