Can you install Subversion on a Time Capsule or similar?

The topic should explain it all, but I was thinking it would be very cool if I had a hard disk on my network I could access via wifi and that would also serve as an svn server for my programming work.

Is such a thing possible, I run leopard and I am fairly new to SVN so any information you provide would rock! If its possible any guides that are fairly foolproof will be read

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- Got an imac in jan (20in with 2.4ghz, 500gb and 3gb of memory, its revolutionising my workspace )

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If there is a better way to have my own svn server using a mac, something that i could share across a network that works too, but its just the time capsule is basically just a wireless HDD isnt it?