# Now-first Workout Copilot example

This is the phone-first local-first product exemplar for hemx. It shows a
single useful loop: next action shown, user input accepted, a local command
recorded, a domain event projected, hemx UI updated, and the result exported or
replayed without storing DOM patches or UI update payloads as truth. req: examples/001
req: local/001 req: local/003 req: local/004

## Run

```sh
cargo run --bin hemx-workout-example
```

Open `http://127.0.0.1:3028`.

If the port is busy, pick another address:

```sh
HEMX_WORKOUT_ADDR=127.0.0.1:3030 cargo run --bin hemx-workout-example
```

The server prints the URL it bound. A bind failure means another process owns
the address; retry with `HEMX_WORKOUT_ADDR` instead of changing app code.

## Test

```sh
cargo test -p hemx-workout-example
```

The E2E test starts the real HTTP binary, loads the page, checks the shared
runtime asset, submits workout interactions, decodes hemx effect responses, and
replays exported events back into a projection. req: test/001 req: examples/001

For the full repository gate:

```sh
cargo run -p hemx-xtask -- test
```

## Deploy shape

The deployable artifact is the Rust server binary plus the generated hemx
resources embedded by the build script:

```sh
cargo build --release --bin hemx-workout-example
HEMX_WORKOUT_ADDR=0.0.0.0:8080 ./target/release/hemx-workout-example
```

Put a normal reverse proxy or platform router in front of that port. The app
serves the shared hemx runtime through `hemx-axum`; there is no frontend build,
Node runtime, Expo/Ionic/Tauri shell, or handwritten selector UI JavaScript to
ship. req: axum_integration/005 req: examples/005

## Boundaries proven

- Core workout logging works without network availability once the page/runtime
  is loaded: commands/events/projections are app truth. req: local/001
- Browser/PWA export uses the host capability contract and the host result
  returns through app code before UI effects. req: host/001 req: host/005
- Native-shell-shaped haptic acknowledgment uses the same host call/event path
  without giving the shell ownership of workout state. req: host/002
- Sync, backup, auth, AI/STT, provider policy, and conflict handling are not
  hidden in hemx core or the example runtime; they remain explicit app or
  integration decisions. req: local/002 req: local/003