Browserstack resources:
https://www.browserstack.com/docs/live/local-testing
1 – Install the browserstack local binary
https://www.browserstack.com/browserstack-local/BrowserStackLocal-linux-x64.zip
2 – cd in the directory where the binary is located and run:
./BrowserStackLocal --key t9guUg6zxQ5Y9MBfciaZ
3- in your browser access borwserstack and tick “Resolve all URLs through my network

you can also do that throught cli when running the binary:
./BrowserStackLocal --key t9guUg6zxQ5Y9MBfciaZ --force-local
For local testing, ensure that localhost is served on bs-local.com
see https://www.browserstack.com/docs/live/local-testing/test-using-local-testing