fitness-web/README.md
Jacob Hinkle 5584022a23 Single-container AI coach with agent API endpoints and UI polish
- Merge opencode-serve into the web container via entrypoint script
- Add /api/agent/* JSON endpoints for workouts, sets, checkins
- Rewrite fitness-trainer.md to use API instead of markdown files
- Pass recent workouts and check-ins as chat context to the coach
- Show current training phase on dashboard
- Clarify check-ins as morning check-ins (calories/steps = yesterday)
- Add NixOS deployment section to README
- Make all check-in fields explicitly optional in UI
2026-06-29 10:50:01 -04:00

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# Fitness Web
Multi-user fitness tracking web app with AI coaching.
Track workouts, log daily check-ins, explore exercise history, and chat with an AI coach powered by opencode.
## Features
- **Workouts** — Plan and log workouts with set-level detail (reps, weight, RPE)
- **Exercises** — Catalog with body-part filtering and history
- **Check-ins** — Daily weight, calories, steps, sleep tracking
- **AI Coach** — Chat interface backed by opencode (Big Pickle model, free)
- **Multi-user** — Login-based, each user has independent data
- **Calendar view** — See your training history at a glance
- **NixOS-ready** — Docker-based deploy with provided NixOS module
## Quick Start
```bash
# Install dependencies
uv sync
# Initialize and seed the database
uv run python scripts/schema.py
uv run python scripts/seed.py
# Start the dev server
uv run uvicorn app.main:app --reload
```
Open http://localhost:8000, register a user, and you're ready.
## Docker
```bash
docker compose up -d
```
## NixOS Deployment
A single container runs both the web app and the AI coach (opencode-serve) together, sharing the SQLite database on the same filesystem.
### 1. Build image
```bash
docker build -t fitness-web:latest .
```
### 2. NixOS module
Add `machines/cj/fitness-web.nix` to your nix_config:
```nix
{ serverIP, serverIP6 }: {
fitness-web = {
image = "fitness-web:latest";
ports = [ "8688:8000" ];
environment = {
TZ = "America/New_York";
SESSION_SECRET = "change-me-in-production";
};
volumes = [
"/serverdata/fitness-web/data:/app/data"
"/serverdata/fitness-web/opencode:/root/.config/opencode"
];
};
}
```
Wire it into `configuration.nix`:
```nix
virtualisation.oci-containers.containers = let
ips = { ... };
in {
# ... existing containers ...
fitness-web = (import ./fitness-web.nix ips).fitness-web;
};
```
### 3. Nginx reverse proxy
In `nginx.nix`, add a vhost:
```nix
"fitness.jhink.org" = simpleProxy 8688;
```
### 4. Firewall
Add to `allowedTCPPorts` in `firewall.nix`:
```nix
8688 # fitness-web
```
### 5. Deploy
```bash
nixos-rebuild switch --flake .#cj
```
Then access at https://fitness.jhink.org (or your chosen domain).
## Architecture
```
app/
├── main.py — FastAPI app factory with lifespan
├── config.py — Settings from environment
├── auth.py — Auth helpers (hash, verify, session)
├── models/ — SQLAlchemy ORM models
├── routers/ — Route handlers per feature
├── services/ — External service integrations (opencode)
├── templates/ — Jinja2 templates (Pico.css)
└── static/ — CSS overrides
scripts/
├── schema.py — DB table creation
└── seed.py — Seed exercises and phases
data/ — SQLite database (gitignored)
```
## Related
- [fitness-agent](https://github.com/yourname/fitness-agent) — Original training repo with markdown logs and Juggernaut history. This web app replaces it.