Stream Homebrew Over TCP?

Taken right from the FAQ on the Homebrew Channel page:

http://hbc.hackmii.com/faq

Quote:

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...(optional) a computer on the same network as your Wii, to stream homebrew apps over TCP.

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How can I do this? I only have a 1GB SD card and this would save me time and space by just streaming everything right from the PC.

Thanks in advance.