Firmware for the b-parasite board, but in Rust.

Add back clang nix

Changed files
+1
.tangled
workflows
+1
.tangled/workflows/test.yml
··· 7 7 dependencies: 8 8 nixpkgs: 9 9 - rustup 10 + - clang 10 11 - libclang 11 12 12 13 steps: