Mk4vfs is a VFS driver for Metakit, written in Tcl. It requires the TclVFS extension.
It is included in Tclkit and is used during the start phase of Starkits to mount itself as file system. Once mounted, Tclkit can run the "main.tcl" and use the packages in its lib/ directory.
MHo: What would be cool: if we could mount a Mk4vfs as a (windows-)drive or at least from within a file manager like total commander, so we would be able to work with the files in such a VFS as with any other files.