Package fuse enables writing and mounting user-space file systems. The primary elements of interest are: The fuseops package, which defines the operations that fuse might send to your userspace daemon. The Server interface, which your daemon must implement. fuseutil.NewFileSystemServer, which offers a convenient way to implement the Server interface. Mount, a function that allows for mounting a Server as a file system. Make sure to see the examples in the sub-packages of samples/, which double as tests for this package: http://godoc.org/github.com/u-root/fuse/samples In order to use this package to mount file systems on OS X, the system must have FUSE for OS X installed (see http://osxfuse.github.io/). Do note that there are several OS X-specific oddities; grep through the documentation for more info.