If running tests on other devices, pass in the ip as command line args, after extra args AT THE END, like: "--extra-args --web_server_ip=your.pc.ip.address"
Add/change the code in ./WebServer code, most likely in httptests/urls.py and httptests/views.py, and save. Code will be reloaded if the web server is running
When using docker, also need to run dockerbuildandrun.bat
For more info about how to code in django, check https://docs.djangoproject.com/en/