Building a Tiny FUSE Filesystem

Lately I have been working around sandboxing, storage, and networking, and a lot of that work keeps coming back to files, which makes sense since Unix has organized itself around everything is a file for over fifty years. Your terminal and random number generator are device files you can open and read (/dev/tty, /dev/urandom), and even network sockets, which are created with their own system call rather than opened by path, are read and written through the same interface afterwards.