Phased plan (P0 dependency spike → P1 read-only presence → P2 sandbox drive →
P3 remote-provider autonomy → P4 persistence) for joining a room as a user from
Termux. Grounded in the real SRP/Fernet/ws client and the operate provider path.
Covers the srp aarch64 build risk + pure-Python SRP fallback, the cryptography
pin workaround, and Tailscale / reverse-SSH / port-forward reachability.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
leetcrypt