siduction repo, contrib and non-free?

[sunrat]

I am just helping a new siduction user who was asking me about repositories for siduction.list. He pointed me to http://packages.siduction.org/ which shows contrib and non-free listed. However I  just have main, and a quick browse appears to show contrib and non-free are empty at the repo.
My siduction.list is:

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deb http://packages.siduction.org/base unstable main
deb http://packages.siduction.org/extra unstable main
deb http://packages.siduction.org/fixes unstable main

deb http://packages.siduction.org/kdenext unstable main
Is this correct or should it be different?

[melmarker]

fixes may contain non-free and contrib in some cases (prop. drivers) so it is recommend, that you use fixes main contrib non-free, if you use non-free repos. The other repos (except user and the nearly deprecated experimental) should only contain  main.

[sunrat]

Thanks melmarker!
What exactly is the user repo and should I include it?

[melmarker]

the user repo was planned as something similar to arch aur - but its not well adaped until now - so i think you can leave that out.

[sunrat]

OK, thanks a lot for your help.