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sustenance/README.md
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sbstpandsbstp 9b32fd23a7 Add support for meals (#1)
Reviewed-on: #1
Co-authored-by: Simon Bernier St-Pierre <git.sbstp.ca@gmail.com>
2026-08-01 20:27:38 -04:00

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# Sustenance
A small shared grocery list built with Rust, Axum, Maud, htmx, WebSockets, and SQLite.
## Run locally
```sh
cargo run
```
Open <http://127.0.0.1:3000>. The application creates `sustenance.db` in the working directory on first start.
## Configuration
| Variable | Default | Purpose |
| --- | --- | --- |
| `DATABASE_PATH` | `sustenance.db` | SQLite database path |
| `BIND_ADDRESS` | `127.0.0.1:3000` | Listen address |
| `PUBLIC_BASE_URL` | derived from `BIND_ADDRESS` | Base URL used in invitation links |
| `COOKIE_SECURE` | `false` | Add the `Secure` attribute to session cookies |
| `REGISTRATION_MODE` | `invite_only` | Use `open` for local development; otherwise registration requires a valid list invitation after the first account |
| `SEED_CONFIG` | `seed.json` | Optional JSON file with a default user to create when the database is first initialized |
| `RUST_LOG` | `sustenance=debug,tower_http=info` | Log filter |
### Seeding a default user
If a JSON config file exists at the path given by `SEED_CONFIG` (default `seed.json`),
Sustenance creates the configured user on startup when the database has no users yet.
The file is optional — if it is missing or invalid, seeding is silently skipped.
```json
{
"user": {
"email": "you@example.com",
"display_name": "You",
"password": "a-strong-password"
}
}
```
## Current features
- Email/password accounts with Argon2 password hashes
- Cookie-backed sessions and CSRF tokens for list mutations
- Shared lists with one-time, seven-day invitation links
- Invite-only registration by default after the first account
- Add, edit, check, and delete grocery items
- Global categories with common defaults seeded at startup and custom category creation
- Items grouped by category and assigned from the add/edit forms
- Meals with ingredients, markdown descriptions, and one-click "add meal to list"
- Server-authoritative last-write-wins updates
- Per-list WebSocket updates with server-rendered htmx fragments
- In-memory presence for members currently viewing a list
- Responsive layout for phone, tablet, and desktop
The htmx scripts are currently loaded from unpkg. They can be vendored into `static/` before production deployment.
## Verification
```sh
cargo fmt --all -- --check
cargo check
cargo test
```