HAOS Local Add-on Deployment (RPi, 24/7)

Deploy a self-written long-running app (poller, monitor, etc.) as a Home Assistant OS local add-on, running 24/7 on a Raspberry Pi instead of a workstation that sleeps. Every step below has been verified on real hardware; all pitfalls are marked ⚠️. In the examples, <alias> = your SSH alias for the HA box, <slug> = add-on slug (becomes local_<slug> once installed), and $C = the Docker container name resolved at runtime by the snippet in Scope below — never hardcoded, because its prefix differs between Supervisor versions. Substitute your own values; nothing here is host-specific.

Scope