trail-mate/apps/nrf52_node

apps/nrf52_node

Role = product app shell / target app shell.

apps/nrf52_node is the nRF52 node product app shell executable baseline.

It is not a PlatformIO project directory and does not contain build host files in Phase 8 Build/AppShell Executable Convergence.

Build Entrypoint invokes.
App Shell composes.
Target chooses.
Board describes.
UX Pack presents.

Build Entrypoint

Build entrypoint = builds/pio_nrf52

Removed root history is documented only in docs/archive/REMOVED_LEGACY_ROOTS.md.

Future Responsibilities

May:

• select nRF52 target profile
• select board package
• select node/status UX profile
• invoke product composition
• hand off to runtime facade

Must not:

• own build host files
• own PlatformIO environment definitions
• define board facts
• implement HAL details
• implement screen internals
• assemble Chat/Map/GPS runtime directly in build wrapper

Thin App Shell Entrypoint Declaration

Current source-level shell descriptor:

src/nrf52_node_app_shell.h
src/nrf52_node_app_shell.cpp
trailmate-nrf52-node-app-shell

Current config:

target_family = nrf52_node
default_ux_pack_id = tiny_node_status

No behavior change in the app shell baseline.