Possibly useful existing implementation: https://github.com/unfs3/unfs3 https://github.com/unfs3/unfs3 This has the benefits of being tested and having a work

Possibly useful existing implementation: https://github.com/unfs3/unfs3 https://github.com/unfs3/unfs3 This has the benefits of being tested and having a working read-write implementation (along with still being user-space).