AQUAPING — Context & Key Decisions

2026-06-05 — Relay Resilience / Pi4 Front Door

Diagnosed ERRNO111 connection refused on RG40XXV as an Aquaping relay outage: BlueBubbles was healthy on Mac10 at 100.93.138.108:1234, but no process was listening on 100.93.138.108:9876.

Implemented the resilience path: - RG client accepts ordered AQUAPING_RELAYS and falls back between relays. - Relay supports environment-driven bind host/port for launchd/systemd. - Relay supports optional bb_backends while preserving bb_url / bb_password. - Tracked service templates for Mac10 launchd and Pi4 user systemd.

Target deployment: - Pi4 front door: 100.120.38.37:9876 - Mac10 direct fallback: 100.93.138.108:9876 - Mac10 BlueBubbles backend: 100.93.138.108:1234