The most updated documentation about PuMuKIT is in the Github repository. These are links to specific parts of the documentation.
If you plan to install PuMuKIT in your own infrastructure, you need to read this guide
If you already have PuMuKIT 1.x installed and you are planning to upgrade it to a newer 1.x version please check this guide.
This is the user (Publisher) guide for PuMuKIT and a good starting point for everybody willing to publish and manage video collections with PuMuKIT