1. The `commtest` app is successfully built.
2. To run tests:
- Start the Tunnelbroker server using the `nix develop --accept-flake-config -c bash -c "cargo run"` command in the `services/tunnelbroker` directory.
- Open another terminal and run the following command from the `services/commtest` directory:
`nix develop --accept-flake-config -c bash -c "cargo t --test tunnelbroker_integration_test -- --nocapture"`
The expected result is that the `commapp` will be running the tests for the Tunnelbroker API.