JAVA_HOME - If the java home variable is set as an environment variable, use it when starting the selenium server. The java executable is assumed to be found in JAVA_HOME/bin/java.

NO_PROXY - If the no proxy environment variable exists and matches the host name, to ignore the resolve proxy.

HTTPS_PROXY - If the https proxy environment variable exists and the url protocol is https, use this proxy.

HTTP_PROXY - If the http proxy environmet variable exists and the url protocol is http or https, use this proxy.

GITHUB_TOKEN - A GitHub personal access token with no additional scopes required. When created, it will just have public-access. This can be set at https://github.com/settings/tokens.