docs(README): update documentation to include RNS Hot Restart feature, configuration options, and Nix development support

README.md

@@ -12,6 +12,7 @@ This project is seperate from the original Reticulum MeshChat project, and is no
 ## Major Features
 
 - Full LXST support w/ custom voicemail, phonebook, contacts, contact sharing and ringtone support.
+- RNS Hot Restart: Reload the entire Reticulum stack from settings without restarting the app.
 - Multi-identity support.
 - Authentication
 - Map (OpenLayers w/ MBTiles upload and exporter for offline maps)
@@ -90,7 +91,6 @@ This project is seperate from the original Reticulum MeshChat project, and is no
 
 ## TODO
 
-- [ ] Tests and proper CI/CD pipeline.
 - [ ] RNS hot reload fix
 - [ ] Offline Reticulum documentation tool
 - [ ] Spam filter (based on keywords)
@@ -108,18 +108,21 @@ Check [releases](https://git.quad4.io/Ivan/MeshChatX/releases) for pre-built bin
 If you prefer not to use Docker or pre-built binaries, you can install MeshChatX manually:
 
 1. **Clone the repository**:
+
     ```bash
     git clone https://git.quad4.io/RNS-Things/MeshChatX
     cd MeshChatX
     ```
 
 2. **Install Node.js dependencies**:
+
     ```bash
     corepack enable
     pnpm install
     ```
 
 3. **Install Python dependencies**:
+
     ```bash
     # It is recommended to use a virtual environment
     pip install poetry
@@ -127,6 +130,7 @@ If you prefer not to use Docker or pre-built binaries, you can install MeshChatX
     ```
 
 4. **Build the frontend**:
+
     ```bash
     pnpm run build-frontend
     ```
@@ -157,6 +161,24 @@ If you are building your own multi-arch image:
 DOCKER_PLATFORMS=linux/amd64,linux/arm64 task build-docker
 ```
 
+## Configuration
+
+MeshChatX can be configured via command-line arguments or environment variables. Environment variables are particularly useful when running in Docker.
+
+| Argument                 | Environment Variable            | Default        | Description                                  |
+| :----------------------- | :------------------------------ | :------------- | :------------------------------------------- |
+| `--host`                 | `MESHCHAT_HOST`                 | `127.0.0.1`    | The address the web server should listen on. |
+| `--port`                 | `MESHCHAT_PORT`                 | `8000`         | The port the web server should listen on.    |
+| `--no-https`             | `MESHCHAT_NO_HTTPS`             | `false`        | Disable HTTPS and use HTTP instead.          |
+| `--headless`             | `MESHCHAT_HEADLESS`             | `false`        | Don't launch the web browser automatically.  |
+| `--auth`                 | `MESHCHAT_AUTH`                 | `false`        | Enable basic authentication.                 |
+| `--auto-recover`         | `MESHCHAT_AUTO_RECOVER`         | `false`        | Attempt auto-recovery of SQLite database.    |
+| `--storage-dir`          | `MESHCHAT_STORAGE_DIR`          | `./storage`    | Path for databases and config files.         |
+| `--reticulum-config-dir` | `MESHCHAT_RETICULUM_CONFIG_DIR` | `~/.reticulum` | Path to Reticulum config directory.          |
+| `--identity-file`        | `MESHCHAT_IDENTITY_FILE`        | -              | Path to a Reticulum Identity file.           |
+| `--identity-base64`      | `MESHCHAT_IDENTITY_BASE64`      | -              | Base64 encoded Reticulum Identity.           |
+| `--identity-base32`      | `MESHCHAT_IDENTITY_BASE32`      | -              | Base32 encoded Reticulum Identity.           |
+
 ## Building
 
 This project uses [Task](https://taskfile.dev/) for build automation. Install Task first, then:
@@ -166,12 +188,20 @@ task install   # installs Python deps via Poetry and Node deps via pnpm
 task build
 ```
 
+### Development with Nix
+
+If you use [Nix](https://nixos.org/), a `flake.nix` is provided for a complete development environment including Python, Node.js, and all packaging tools.
+
+```bash
+nix develop
+```
+
 You can run `task run` or `task develop` (a thin alias) to start the backend + frontend loop locally through `poetry run meshchat`.
 
 ### Available Tasks
 
 | Task                         | Description                                                                     |
-| ----------------------------- | ------------------------------------------------------------------------------- |
+| ---------------------------- | ------------------------------------------------------------------------------- |
 | `task install`               | Install all dependencies (syncs version, installs node modules and python deps) |
 | `task node_modules`          | Install Node.js dependencies only                                               |
 | `task python`                | Install Python dependencies using Poetry only                                   |