Use the following command to download and try it out

curl --location https://github.com/dcRUSTy/nw-speedmeter-macos/releases/download/v1/speedMeter > ./speedMeter && curl --location https://github.com/dcRUSTy/nw-speedmeter-macos/releases/download/v1/start > ./launchspeedMeter && chmod a+x ./launchspeedMeter && ./launchspeedMeter