To build:

1. Run nix-shell to get all dependencies
2. cargo run

Alternatively install needed dependencies using your distros package manager (listed in shell.nix).

If building on NixOS, to make the built binary run on on non-nix systems you have to patch the interpreter like this: patchelf --set-interpreter /lib64/ld-linux-x86-64.so.2 ./target/release/kop-audio