Short answer: no and no (although I've heard that people have used it on SteamDeck - completely a surprise to me)

I've never dabbled with FreeBSD. It seems to not be supported by Tauri (the GUI wrapper). That said, with the agent binary (written in Go) would probably work.

It's closed source, out of unethical front-running paranoia as I'm building recognition and trust. That said, I'd like to release the agent open source in the future (like Tailscale), which could easily double as a CLI.