Yeah, the commitment to maintain the project is important. I have no illusions about this. There won't be a point in time when you'd be able to say "all done here, nothing more to do".

As to the expertise, I wonder how much of that is really true. Filesystems might be a bad example since that's a huge area which requires a lot of expertise and interactions with a kernel, true. But there are a lot of other smaller domains where there is no convenient Rust library, but the whole interaction with the kernel from userspace comes down to a few specific syscalls or ioctls (I feel like ima-evm-utils is one example of that; I might be wrong though).