support Netguard
Issue #1284 (closed) and #1400 make it clear that users have trouble trusting whether Briar is not leaking on the clearnet. It raises some questions:
- what happens if Orbot is not installed?
- how does Briar work if Tor is enabled and also Netguard is using transparent proxying to force Briar packets over Tor? On a desktop system, such a scenario would break because the app would be trying to connect to 127.0.0.1:9050 on the WAN. But on Android it functions, which seems to imply that Netguard is being bypassed.
Netguard's lockdown mode does not work on Briar apparently because Netguard is being bypassed. If Briar supported a non-Tor configuration, then users could use Netguard to force it over Tor and automatically have more confidence that there are likely no leaks. Although I don't know if netguard and orbot can handle whatever onion addressing Briar uses.