I, myself, am still trying to get the thing bootstrapped so that I don't need to write it in C any more. So far, I've got the filesystem half-finished, and can read files and directories from the POSIX filesystem into Figure's in-memory nodesystem.
Next comes fine-grained virtual memory, so that individual objects can be moved around without having to read and write entire files.
FOAF updates: Trust rankings are now exported, making the data available to other users and websites. An external FOAF URI has been added, allowing users to link to an additional FOAF file.
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If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!