Pulls the services.openthread-border-router NixOS module directly from
nixpkgs-unstable since it isn't in 25.11 yet. Service stays disabled
in this commit; configuration follows.
Also promotes `self` from `_module.args` to `specialArgs` in
machines/configuration.nix, since `imports` are evaluated before
`config` and so can't reach `_module.args.self`.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Adds the `zha` extra component so Home Assistant can drive the
Nabu Casa Connect ZBT-2 radio, and puts the `hass` service user in
`dialout` so it can open `/dev/serial/by-id/usb-Nabu_Casa_..._ZBT-2_*`.
Pairing is then handled through the standard ZHA wizard in the HA UI.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
extraComponents only installs packages; mobile_app needs to be declared
in configuration.yaml to actually load.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>