Things that are currently true, stated here so you do not spend an evening working them out.
tvOS, watchOS and visionOS are not shipping platforms. They exist as build targets in our project configuration, which means the code compiles for them. It does not mean there is a release you can install, and they are deliberately absent from the download page. If you saw them mentioned somewhere and went looking, that is why you found nothing.
The Linux client is open source; the tunnelling engine is not. The interface is at AllianceInterStellar/aibooster-linux. The engine is a separate program under a different licence, shipped prebuilt in the release packages. A build from that source tree will not tunnel on its own — you supply the engine. That boundary is deliberate rather than an oversight.
AgentAura's web deploy is bring-your-own-server only. Cloud provider provisioning was removed from that flow. Native app builds may offer different options; follow what the app in front of you actually shows.
Gemini and Grok keys are not currently offered in the credentials screen, even though you may see those providers referenced elsewhere. The choices there today are Anthropic, OpenAI and DeepSeek keys, or a Claude Code / Codex account login.
If any of these is the thing blocking you, say so in this category — knowing which limitation actually costs people something is the useful signal.