[kata-dev] how to debug the rust shim

Hi all, I'm looking into the Rust shim PRs (great job!) and I'd like to be able reasonably easily to run the binary standalone, preferrably under debugger, mostly to verify my assumptions. I noticed the binary is somewhat hard to run though - it has complex interactions with its environment and makes quite a lot of assumptions about it. I was wondering if there's a way to mock these, or how shim developers go about debugging and verifying the code. Thanks in advance! pvl