[phil-opp]

It's the first time that I hear about Rust on medical devices. Sounds really interesting! I'm glad to hear that my blog was useful to you!

> I have been trying to hack at the utest crate and get on-device integration tests running again for quite some time... good to know there is movement on the custom test runner front :)

The custom test framework feature of Rust was silently introduced in https://github.com/rust-lang/rust/pull/53410 and I didn't know that it even existed a month ago. But it works really well and seems like a good solution for your problem.