This is an example template for building a circuit to be used with the rust native witness generator circom-witness-rs. Besides building the required graph file, it also shows an example to use
Pass the absolute path to your circuits in the WITNESS_CPP env var.
In the example below, everything is in the project directory.
WITNESS_CPP="$(pwd)"/src/semaphore.circom cargo build --release
This will produce a graph.bin file in the root project folder, which contains the execution graph of the witness generator.
You will need to pass this file during runtime of the libary later.