This project is meant as inspiration and template for Rust/Cargo projects that
create UEFI applications. This is not as easy as one intuitively may think. The
biggest challenge is to enable cargo test and cargo build simultaneously in
a Cargo project in a convenient way, which doesn't use a standard compilation
target (such as Windows, Linux, or MacOS).
To work around these problems, I use a small Makefile-based wrapper that
ensures a proper handling of cargo test and cargo build.
To test and build everything in this template, I recommend the usage of
Nix so that you can run: nix-shell --run "make uefi-app && make test && make qemu-run".
You need make, rustup, qemu, and the environment variable OVMF must
point to OVMF.fd. If you have Nix on your machine, $ nix-shell will bring
the environment variable into your shell environment.