shitty handle docs

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+#+title: Handles
+
+* filesystem / access function front handle
+  See vfs.org.
+  can be used in: mount()
+  returned by fs_create(). there could also be functions that created a front handle from a subset of the current vfs.
+
+* filesystem / access function back handle
+  can be used in: fs_wait()
+  returned by fs_create()
+
+* file handle
+  When an access function accepts a path, it returns a number uniquely identifying that open file. The kernel then wraps it in a file handle which gets passed back to the original caller.
+  can be used in: read(), write(), maybe there could be a syscall allowing any other custom operation
+  returned by open()
+
+* shared operations
+  pass to parent / wait for handle from child
+  close
+