docs(README): add manual installation instructions and ARM64 support details

README.md

@@ -103,6 +103,60 @@ This project is seperate from the original Reticulum MeshChat project, and is no
 
 Check [releases](https://git.quad4.io/Ivan/MeshChatX/releases) for pre-built binaries or appimages.
 
+### Manual Installation (Bare Metal)
+
+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
+   poetry install
+   ```
+
+4. **Build the frontend**:
+   ```bash
+   pnpm run build-frontend
+   ```
+
+5. **Run MeshChatX**:
+   ```bash
+   poetry run meshchat --headless --host 127.0.0.1
+   ```
+
+## Architecture Support (ARM64, etc.)
+
+MeshChatX fully supports **ARM64** (Raspberry Pi, Pine64, etc.) and other architectures via Docker or manual installation.
+
+### Docker (Recommended for ARM64)
+
+The official Docker image is multi-arch and supports `linux/amd64` and `linux/arm64`.
+
+```bash
+# On a Raspberry Pi, simply pull and run
+docker pull git.quad4.io/rns-things/meshchatx:latest
+```
+
+### Manual Build for ARM64
+
+If you are building your own multi-arch image:
+
+```bash
+DOCKER_PLATFORMS=linux/amd64,linux/arm64 task build-docker
+```
+
 ## Building
 
 This project uses [Task](https://taskfile.dev/) for build automation. Install Task first, then:
@@ -117,7 +171,7 @@ You can run `task run` or `task develop` (a thin alias) to start the backend + f
 ### 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                                   |