You can be as createive as your rcreativety allows for the application name, and you can switch off Trusted if you prefer (it will mean users have to approve the application gains access to their Gitlab resources).
Make sure to use the proper base URL instead of `http://localhost:8080/` for all the URLs; you need to whitelist all the URLs (though only the first two are in use right now). Here the URLs are in a copy-paste friendly format: